San Diego County, California
San Diego County (/ˌsæn diˈeɪɡoʊ/ (listen)), officially the County of San Diego (Spanish: Condado de San Diego), is a county in the southwestern corner of the U.S. state of California. As of the 2020 census, the population was 3,298,634, making it California's second-most populous county and the fifth-most populous in the United States. Its county seat is San Diego, the second-most populous city in California and the eighth-most populous city in the United States. It is the southwesternmost county in the 48 contiguous United States, and is a border county. It is also home to 18 Native American tribal reservations, the most of any county in the United States.
San Diego County comprises the San Diego-Chula Vista-Carlsbad, CA Metropolitan Statistical Area, which is the 17th most populous metropolitan statistical area and the 18th most populous primary statistical area of the United States as of July 1, 2012. San Diego County is also part of the San Diego–Tijuana transborder metropolitan area, the largest metropolitan area shared between the United States and Mexico.
San Diego County has more than 70 miles (113 km) of coastline. This forms the most densely populated region of the county, which has a mild Mediterranean to semiarid climate and extensive chaparral vegetation, similar to the rest of the western portion of Southern California. Precipitation and temperature extremes increase to the east, with mountains that receive frost and snow in the winter. These lushly forested mountains receive more rainfall than the average in Southern California, while the desert region of the county lies in a rain shadow to the east, which extends into the Desert Southwest region of North America.
There are 16 military installations, of the U.S. Navy, U.S. Marine Corps, and the U.S. Coast Guard in San Diego County. These include Naval Base San Diego, Marine Corps Base Camp Pendleton, Marine Corps Air Station Miramar, Naval Air Station North Island, and Coast Guard Air Station San Diego.
From north to south, San Diego County extends from the southern borders of Orange and Riverside Counties to the Mexico-U.S. border and the Baja California municipalities of Tijuana and Tecate. From west to east, San Diego County stretches from the Pacific Ocean to its boundary with Imperial County, which separated from it in 1907. Since 2010, statewide droughts in California have further strained San Diego County's water security.
The area which is now San Diego County has been inhabited for more than 12,000 years by Kumeyaay (also called Diegueno and Ipai/Tipai), Payómkawichum (Luiseño), Kuupangaxwichem (Cupeño), ʔívil̃uqaletem (Cahuilla), and the Acjachemen (Juaneño) Indians and their local predecessors.
In 1542, the explorer Juan Rodríguez Cabrillo, who may have been born in Portugal but sailed under the flag of Castile, claimed San Diego Bay for the Spanish Empire, and he named the site San Miguel. In November 1602, Sebastián Vizcaíno surveyed the harbor and what are now Mission Bay and Point Loma and named the area for Saint Didacus, a Spaniard more commonly known as San Diego. European settlement in what is now San Diego County began with the founding of the San Diego Presidio and Mission San Diego de Alcalá by Spanish soldiers and clerics in 1769. This county was part of Alta California under the Viceroyalty of New Spain until the Mexican declaration of independence. From 1821 through 1848 this area was part of Mexico.
San Diego County became part of the United States as a result of the Treaty of Guadalupe Hidalgo in 1848, ending the Mexican–American War. This treaty designated the new border as terminating at a point on the Pacific Ocean coast which would result in the border passing one Spanish league south of the southernmost portion of San Diego Bay, thus ensuring that the United States received all of this natural harbor.
San Diego County was one of the original counties of California, created at the time of California statehood in 1850.: 221
At the time of its establishment in 1850, San Diego County was relatively large, and included all of southernmost California south and east of Los Angeles County. It included areas of what are now Inyo and San Bernardino Counties, as well as all of what are now Riverside and Imperial Counties.: 221
During the later part of the 19th century, there were numerous changes in the boundaries of San Diego County, when various areas were separated to make up the counties mentioned above. The most recent changes were the establishments of Riverside County in 1893: 207 and Imperial County in 1907.: 113 Imperial County was also the last county to be established in California, and after this division, San Diego no longer extended from the Pacific Ocean to the Colorado River, and it no longer covered the entire border between California and Mexico.
According to the U.S. Census Bureau, the county has an area of 4,526 square miles (11,720 km2), of which 4,207 square miles (10,900 km2) is land and 319 square miles (830 km2) (7.0%) is water. The county is larger in area than the combined states of Rhode Island and Delaware.
San Diego County has a varied topography. On its western side is more than 70 miles (113 km) of coastline. Most of San Diego between the coast and the Laguna Mountains consists of hills, mesas, and small canyons. Snow-capped (in winter) mountains rise to the east, with the Sonoran Desert farther to the east. Cleveland National Forest is spread across the central portion of the county, while the Anza-Borrego Desert State Park occupies most of the northeast.
Although the county's western third is primarily urban, the mountains and deserts in the eastern two-thirds are primarily undeveloped backcountry. Most of these backcountry areas are home to a native plant community known as chaparral. San Diego County contains more than 1,000,000 acres (4,000 km2) of chaparral, twice as much as any other California county.
Periodically the area has been subject to wildfires that force thousands to evacuate. The most recent are the December 2017 Lilac Fire and the May 2014 San Diego County wildfires; before them was the Witch Creek Fire in 2007 and the Cedar Fire in 2003. California defines a fire season in which fires are most likely to occur, usually between late July and late October (which are the driest months of the area). Signs posted in numerous spots of the county provide information on the level of threats from fires based on weather conditions.
Northern San Diego County is known as North County; the eastern suburbs are collectively known as East County; the rural areas located further east and extending to the Imperial County line are known as the Mountain Empire; and the southern suburbs, extending to the Mexican border, are collectively known as the South Bay or South County, including South San Diego, an exclave of the city of San Diego which has no land connection to the rest of the city.
Under the Köppen climate classification system, the urban and suburban San Diego area straddles areas of Mediterranean climate (CSa) to the north and semi-arid climate (BSh) to the south and east. As a result, it is often described as "arid Mediterranean" and "semi-arid steppe." Farther east, arid desert conditions prevail. Western San Diego's climate is characterized by warm, dry summers and mild winters with most of the annual precipitation falling between November and March. The city has mild, mostly dry weather, with an average of 201 days above 70 °F (21 °C) and low rainfall (9–13 inches (23–33 cm) annually). Summer temperatures are generally warm, with average highs of 70–78 °F (21–26 °C) and lows of 55–66 °F (13–19 °C). Temperatures exceed 90 °F (32 °C) only four days a year. Most rainfall occurs from November to April. Winter temperatures are mild, with average high temperatures of 66–70 °F (19–21 °C) and lows of 50–56 °F (10–13 °C).
The climate in the San Diego area, like much of California, often varies significantly over short geographical distances resulting in microclimates. In San Diego's case this is mainly due to the city's topography (the Bay, and the numerous hills, mountains, and canyons). Frequently, particularly during the "May gray/June gloom" period, a thick marine layer will keep the air cool and damp within a few miles of the coast, but will yield to bright cloudless sunshine approximately 5–10 miles (8.0–16.1 km) inland. This happens every year in May and June. Even in the absence of June gloom, inland areas tend to experience much more significant temperature variations than coastal areas, where the ocean serves as a moderating influence. Thus, for example, downtown San Diego averages January lows of 48 °F (9 °C) and August highs of 77 °F (25 °C). The city of El Cajon, just 10 miles (16 km) northeast of downtown San Diego, averages January lows of 42 °F (6 °C) and August highs of 89 °F (32 °C). Julian, in the mountains, has an average January low of 29 °F (−2 °C) and August high of 85 °F (29 °C). Borrego Springs, in the Colorado Desert, has an average January low of 43 °F (6 °C) and August high of 106 °F (41 °C).
Rainfall along the coast averages about 10 inches (25 cm) of precipitation annually, which occurs mainly during the cooler months of December through April. Though there are few wet days per month during the rainy period, rainfall can be heavy when it does occur. However, the rainfall is greater in the higher elevations of San Diego. Some of the higher areas of San Diego, such as Palomar Mountain and the Laguna Mountains, receive 20–40 inches (51–102 cm) of rain per year, supporting lush forests similar to the Sierra Nevada and California Coast Range. The Colorado Desert portion of the county lies to the east of the mountains, which receives the least amount of precipitation; Borrego Springs, the largest population center in the desert, averages only 5 inches (13 cm), with a high evaporation rate.
|Record high °F (°C)||88
|Mean maximum °F (°C)||78.8
|Average high °F (°C)||66.4
|Daily mean °F (°C)||58.4
|Average low °F (°C)||50.3
|Mean minimum °F (°C)||43.7
|Record low °F (°C)||25
|Average rainfall inches (mm)||1.98
|Average rainy days (≥ 0.01 in)||6.5||7.1||6.2||3.8||2.2||0.7||0.7||0.3||0.9||2.4||3.7||5.8||40.3|
|Average relative humidity (%)||63.1||65.7||67.3||67.0||70.6||74.0||74.6||74.1||72.7||69.4||66.3||63.7||69.0|
|Average dew point °F (°C)||42.8
|Mean monthly sunshine hours||239.3||227.4||261.0||276.2||250.5||242.4||304.7||295.0||253.3||243.4||230.1||231.3||3,054.6|
|Percent possible sunshine||75||74||70||71||58||57||70||71||68||69||73||74||69|
|Source: NOAA (sun, relative humidity, and dew point 1961–1990)|
- ^ Mean monthly maxima and minima (i.e. the highest and lowest temperature readings during an entire month or year) calculated based on data at said location from 1991 to 2020.
- ^ Official precipitation records for San Diego were kept at the Weather Bureau Office in downtown from October 1850 to December 1859 at the Mission San Diego and from November 1871 to June 1939 and a variety of buildings at downtown, and at San Diego Int'l (Lindbergh Field) since July 1939. Temperature records, however, only date from October 1874. For more information on data coverage, see ThreadEx
Adjacent counties and municipalities
National protected areas
- Cabrillo National Monument
- Cleveland National Forest (part)
- San Diego National Wildlife Refuge Complex, which includes
There are seven official wilderness areas in San Diego County that are part of the National Wilderness Preservation System. Four of these are integral parts of Cleveland National Forest, whereas three are managed by the Bureau of Land Management. Some of these extend into neighboring counties (as indicated below):
- Otay Mountain Wilderness (BLM)
- Pine Creek Wilderness (Cleveland National Forest)
- Hauser Wilderness (Cleveland National Forest)
- Carrizo Gorge Wilderness (BLM)
- Sawtooth Mountains Wilderness (BLM)
- Agua Tibia Wilderness (Cleveland National Forest) partly in Riverside County
- San Mateo Canyon Wilderness (Cleveland National Forest) mostly in Riverside County
State parks and protected areas
- Anza-Borrego Desert State Park (part)
- Torrey Pines State Reserve
- Cuyamaca Rancho State Park
- Palomar Mountain State Park
- San Pasqual Battlefield State Historic Park
- Old Town San Diego State Historic Park
- Border Field State Park
- Tijuana River National Estuarine Research Reserve
- San Onofre State Beach
- Moonlight State Beach
- Carlsbad State Beach
- South Carlsbad State Beach
- Leucadia State Beach
- San Elijo State Beach
- Cardiff State Beach
- Torrey Pines State Beach
- Silver Strand State Beach
There are 236 mountain summits and peaks in San Diego County including:
- Black Mountain
- Cuyamaca Peak (second highest point in San Diego County)
- Cowles Mountain (highest point in the city of San Diego)
- Mount Helix
- Hot Springs Mountain (highest point in San Diego County)
- Margarita Peak
- Mount Soledad
- Stonewall Mountain
- El Cajon Mountain
Bays and lagoons
- Lake Cuyamaca
- Lake Hodges
- Santee Lakes
- Sweetwater Reservoir
- Upper Otay Reservoir
- Lower Otay Reservoir
- Lake Wohlford
- El Capitan Reservoir
- Sutherland Reservoir
- Lake Henshaw
- Lake Murray
- San Vicente Reservoir
- Lake Jennings
- Barrett Dam
- Natural Rock Tanks
- Little Laguna Lake
- Big Laguna Lake
- Big Lake
- Twin Lakes
- Jean Lake
- Lost Lake
- Swan Lake
- Lake Miramar
- Lake Poway
- Dixon Lake
- Lindo Lake
- San Diego River
- San Luis Rey River
- San Dieguito River
- Sweetwater River
- Otay River
- Tijuana River
- Santa Margarita River
More than 1,700 tons of radioactive waste are stored at San Onofre Nuclear Generating Station, which sits in an area where there is a record of past tsunamis.
Since at least 2014, San Diego County is the fifth most populous county in the United States. In 2000, only about 3% of San Diego County residents left the county for work while 40,000 people commuted into the metropolitan area.
|U.S. Decennial Census|
1990–2000 2010 2020
|Race / Ethnicity||Pop 2010||Pop 2020||% 2010||% 2020|
|White alone (NH)||1,500,047||1,422,205||48.46%||43.11%|
|Black or African American alone (NH)||146,600||145,014||4.74%||4.40%|
|Native American or Alaska Native alone (NH)||14,098||12,841||0.46%||0.39%|
|Asian alone (NH)||328,058||400,589||10.60%||12.14%|
|Pacific Islander alone (NH)||13,504||12,991||0.44%||0.39%|
|Some Other Race alone (NH)||6,715||18,125||0.22%||0.55%|
|Mixed Race/Multi-Racial (NH)||94,943||167,240||3.07%||5.07%|
|Hispanic or Latino (any race)||991,348||1,119,629||32.03%||33.94%|
Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos can be of any race.
Racial and Ethnic Composition since 1960
|Racial and ethnic composition||2020||2010||2000||1990||1980||1970||1960|
|Hispanic or Latino (of any race)||33.9%||32.0%||26.7%||20.4%||14.7%||12.8%||–|
|Black or African American (non-Hispanic)||4.4%||4.7%||5.7%||6.3%||5.6%||4.5%||3.8%|
|Native American (non-Hispanic)||0.4%||0.5%||0.8%||0.8%||–||–||0.3%|
|Pacific Islander (non-Hispanic)||0.4%||0.4%||0.5%||–||–||–||–|
|Mixed Race (non-Hispanic)||5.1%||3.1%||4.7%||–||–||–||–|
|Population, race, and income (2011)|
|Hispanic or Latino (of any race)||967,858||31.6%|
|Black or African American||154,076||5.0%|
|American Indian or Alaska Native||20,597||0.7%|
|Native Hawaiian or other Pacific Islander||14,266||0.5%|
|Some other race||220,000||7.2%|
|Two or more races||135,992||4.4%|
|Per capita income||$30,955|
|Median household income||$63,857|
|Median family income||$74,633|
|U.S. Decennial Census|
1990–2000 2010–2018 2020 census
This section needs to be updated. The reason given is: Newer information is available from the 2020 census report.(November 2021)
The 2010 United States Census reported that San Diego County had a population of 3,095,313. The racial makeup of San Diego County was 1,981,442 (64.0%) White, 158,213 (5.1%) African American, 26,340 (0.9%) Native American, 336,091 (10.9%) Asian (4.7% Filipino, 1.6% Vietnamese, 1.4% Chinese, 3.2% Other Asian), 15,337 (0.5%) Pacific Islander, 419,465 (13.6%) from other races, and 158,425 (5.0%) from two or more races. Hispanic or Latino of any race were 991,348 people (32.0%). Including those of mixed race, the total number of residents with Asian ancestry was 407,984.
As of 2009, the racial makeup of the county was 79.4% White American, 5.6% Black or African American, 1% Native American, 10.4% Asian, 0.5% Pacific Islander, 10.3% from other races, and 3.6% from two or more races. 31.3% of the population were Hispanic or Latino of any race.
67.0% spoke only English at home; 21.9% spoke Spanish, 3.1% Tagalog and 1.2% Vietnamese.
As of 2018 Census Bureau estimates, there were 3,343,364 people, 1,067,846 households, and 663,449 families residing in the county. The population density was 670 inhabitants per square mile (260/km2). There were 1,142,245 housing units at an average density of 248 per square mile (96/km2).
In 2000 there were 994,677 households, out of which 33.9% had children under the age of 18 living with them, 50.7% were married couples living together, 11.6% had a female householder with no husband present, and 33.3% were non-families. 24.2% of all households were made up of individuals, and 7.9% had someone living alone who was 65 years of age or older. The average household size was 2.73 and the average family size was 3.29.
As of 2000, in the county the population was spread out, with 25.7% under the age of 18, 11.30% from 18 to 24, 32.0% from 25 to 44, 19.8% from 45 to 64, and 11.2% who were 65 years of age or older. The median age was 33 years. For every 100 females, there were 101.2 males. For every 100 females age 18 and over, there were 99.7 males.
In 2012, it was estimated that there were 198,000 unauthorized immigrants; the origin of the plurality of them is Mexico.
In 2018, the median household income was $70,824; most people spend more than 30% of their income on housing costs. In August of that year, the median home price was $583,000; this is lower than the median home price in Los Angeles, and Orange counties.
According to the 2000 Census, the median income for a household in the county was $47,067, and the median income for a family was $53,438. Males had a median income of $36,952 versus $30,356 for females. The per capita income for the county was $22,926. About 8.9% of families and 12.4% of the population were below the poverty line, including 16.5% of those under age 18 and 6.8% of those age 65 or over.
Much of the county's high-income residents are concentrated in the northern part of the city of San Diego. The San Diego metropolitan area has two places with both a population of over 50,000 and a per capita income of over $40,000: Carlsbad and Encinitas.
The county's largest continuous high-income urban area is a triangle from a first point on the northern edge of Carlsbad, a second point southeast of Escondido, and a third point on the southern edge of La Jolla. It contains all or most of the cities of Carlsbad, Encinitas, Solana Beach, Del Mar, and Poway in addition to a substantial portion of northern San Diego.
According to a Point-In-Time count taken for the San Diego Regional Task Force on the Homeless, there were 8,576 homeless individuals on January 6, 2018, a 6% decrease from 2017. 3,586 were sheltered, and 4,990 were not. 4,912 (75.3%) were in the city of San Diego. North County Inland had 1,153 (13.4%), North County Coastal with 822 homeless (9.6%), 602 (7%) were found in South County, and 1,087 (12.7%) in East County.
According to the Pew Research Center as of 2014[update], 68% of adults in the county are Christian, of whom 32% are Catholic. 27% were unaffiliated, and 5% adhered to a Non-Christian faith. According to the University of Southern California, in 2010, the largest faith in the county was Catholicism, followed by Nondenominational Christians, and Mormons.
In 2014, the county had 978 religious organizations, the seventh most out of all US counties.
In 2014 according to Pew Research Center, there are about 170,000 illegal aliens living in the region. San Diego has been a destination for trafficked minors from Mexico and the Philippines. In 2018, the United States Border Patrol caught an average of over a hundred individuals crossing the border illegally each day.
San Diego County and Imperial County are part of the Southern Border Region, one of nine such regions. As a regional economy, the Southern Border Region is the smallest but most economically diverse region in the state. However, the two counties maintain weak relations and have little in common aside from their common border. The region has a high cost of living. This includes the highest cost of water in the United States. As of 2018[update], San Diego County is within the top ten highest cost of rent in the United States; this has led to people moving out of the county.
San Diego County's agriculture industry was worth $1.85 billion in 2013, and is one of the top five egg producing counties in the United States. In 2013, San Diego County also had the most small farms of any county in the United States, and had the 19th largest agricultural economy of any county in the United States. According to the San Diego Farm Bureau, San Diego County is the United States' leading producer of avocados and nursery crops. Until the early 20th century, San Diego County had a thriving wine industry; however the 1916 Charles Hatfield flood was the beginning of the end of the industry which included the destruction of the Daneri winery in Otay Valley. As of October 2016[update], there are roughly one hundred vineyards and wineries in San Diego County.
By the 2019–2020 statistical survey, California Department of Food & Agriculture (cdfa) found that the nursery trade dominated the county's agriculture by dollar value. Second place went to avocado production.
The county has been called "the Craft Beer Capital of America". Brewing has been one of the fastest-growing business sectors with local breweries ranking among the 50 largest craft brewers in the United States and breweries that are consistently rated among the top breweries in the world.
Commercial operations to grow, test, or sell cannabis are not allowed in the unincorporated areas of the county. Companies must be licensed by the local agency to operate and each city or county may authorize none or only some of these activities. Local governments may not prohibit adults, who are in compliance with state laws, from growing, using, or transporting marijuana for personal use.
Tourism plays a large part in the economics of the San Diego metropolitan area. Tourists are drawn to the region for a well rounded experience, everything from shopping to surfing as well as its mild climate. Its numerous tourist destinations include Westfield UTC, Seaport Village, Westfield Mission Valley and Fashion Valley Mall for shopping. SeaWorld San Diego and Legoland California as amusement parks. Golf courses such as Torrey Pines Golf Course and Balboa Park Golf Course. Museums such as the San Diego Museum of Man, San Diego Museum of Art, Reuben H. Fleet Science Center, San Diego Natural History Museum, USS Midway Museum, and the San Diego Air and Space Museum. Historical places such as the Gaslamp Quarter, Balboa Park and Old Town San Diego State Historic Park. Wildlife refuges, zoos, and aquariums such as the Birch Aquarium at Scripps, San Diego Zoo's Safari Park, San Diego Zoo and San Diego-La Jolla Underwater Park. Outdoor destinations include the Peninsular Ranges for hiking, biking, mountainboarding and trail riding. Surfing locations include Swami's, Stone Steps Beach, Torrey Pines State Beach, Cardiff State Beach, San Onofre State Beach and the southern portion of Black's Beach.
The region is host to the second largest cruise ship industry in California which generates an estimated $2 million annually from purchases of food, fuel, supplies, and maintenance services. In 2008 the Port of San Diego hosted 252 ship calls and more than 800,000 passengers.
The culture of San Diego is influenced heavily by American and Mexican cultures due to its position as a border town, its large Hispanic population, and its history as part of Spanish America and Mexico. The area's longtime association with the U.S. military also contributes to its culture. Present-day culture includes many historical and tourist attractions, a thriving musical and theatrical scene, numerous notable special events, a varied cuisine, and a reputation as one of America's premier centers of craft brewing.
Sites of interest
- Mount Laguna Observatory, owned and primarily operated by San Diego State University
- Palomar Observatory, owned and primarily operated by the California Institute of Technology
- The Ramona Valley wine-producing region, located 28 miles (45 km) northeast of the city of San Diego
- San Diego Zoo Safari Park, formerly known as the San Diego Wild Animal Park, 35 miles (56 km) north of the San Diego Zoo and east of Escondido
- Sea World of San Diego, on Mission Bay.
- Mission Bay Recreation Area, including Fiesta Island, a sheltered bay popular for water sports, also known for the annual Over the line tournament.
- Mission San Diego de Alcala, the first of California's 21 Spanish missions. It is an operating Roman Catholic parish and also is open for historical interest tours during the week. It is located near the interchange of Interstates 8 and 15.
- Mission San Luis Rey, founded on June 13, 1798, by Padre Fermín Lasuén. It is the 18th of the Spanish missions established in California. It is an operating Roman Catholic parish and is open every day for historical interest tours. It is located near Route 76 in the Oceanside area.
- Balboa Park, with numerous museums and other cultural locations, just north of Downtown San Diego.
- San Diego Zoo, located in Balboa Park
- Presidio Park, located on a bluff directly above Old Town, a city historic park on the site of the San Diego Presidio, the first European settlement in California.
- San Diego Bay contains the aircraft carrier USS Midway now used as a memorial ship and as a floating museum, and the eight floating museum ships of the San Diego Maritime Museum. Harbor cruises, sailing, and sport fishing are also available
- San Diego Botanic Garden, a 37-acre botanic oasis in the coastal community of Encinitas. Features 4 miles of meandering trails, 5,300+ plant species and 29 uniquely themed gardens, including the largest public bamboo collection in North America.
- Legoland California, a Lego theme park in Carlsbad.
- Alta Vista Gardens is a Botanical Garden in Vista dedicated to bringing together 'People, Nature & Art'.
- Mount Ecclesia is a historic district noted for its singular architecture and the preservation of nature grounds and gardens, offering a unique meditative walking experience. It is located about a mile east of Interstate 5 in the Oceanside area.
- San Dieguito County Park
The most popular sports team in the San Diego metropolitan area is Major League Baseball (MLB)'s San Diego Padres. The college sports teams of the San Diego State Aztecs are also locally popular.
Major professional team
|San Diego Padres||Baseball||1969[a]||Major League Baseball (MLB)||Petco Park (40,209)|
- ^ The Padres were originally founded in 1936 as a minor league team which played through 1968, when it gave way to the new, current, MLB Padres
Other highest-level professional teams
|San Diego Wave FC||Soccer (women's)||2022||National Women's Soccer League (NWSL)||Torero Stadium (6,000)[a]|
|San Diego Seals||Lacrosse||2017||National Lacrosse League (NLL)||Pechanga Arena (12,920)|
|San Diego Legion||Rugby union||2018||Major League Rugby (MLR)||SDSU Sports Deck (3,000)[b]|
|San Diego Sockers||Indoor soccer||1978[c]||Major Arena Soccer League (MASL)||Pechanga Arena (12,000)[d]||15[e]|
|San Diego Strike Force||Indoor football||2019||Indoor Football League (IFL)||Pechanga Arena (12,000)|
|San Diego Aviators||Tennis||2014[f]||World TeamTennis (WTT)||Omni La Costa Court (2,100)||1 (2016)[g][h]|
|San Diego Growlers||Ultimate||2015||American Ultimate Disc League (AUDL)||varies|
|San Diego Lions||Australian football||1997||United States Australian Football League (USAFL)||varies||2 (2001, 2006)|
|San Diego Yacht Club||Sailing||1886||America's Cup||varies||3 (1987, 1988, 1992)|
|San Diego Swell||Rugby league||TBD[i]||North American Rugby League (NARL)||TBD|
- ^ Wave FC plans to move to Snapdragon Stadium (capacity 35,000) upon the stadium's completion in September 2022
- ^ The Legion plans to move to Snapdragon Stadium (capacity 35,000) in 2023
- ^ 3rd San Diego Sockers iteration of highest-level professional indoor soccer, re-founded in 2009. Previous teams: San Diego Sockers (1978–1996) and San Diego Sockers (2001–2004)
- ^ The Sockers plan to move to CaliFino Arena (capacity 6,367), a newly constructed arena in Oceanside in 2023
- ^ Sockers franchise includes titles won by its previous iteration, San Diego Sockers (1978–1996), in preceding top professional indoor soccer leagues. The franchise's titles by league are as follows:
MASL: 5 (2010, 2011, 2012, 2013, 2021)
MISL: 8 (1983, 1985, 1986, 1988, 1989, 1990, 1991, 1992)
NASL Indoor: 2 (1982, 1984)
- ^ Franchise was founded in 1995 in New York City, relocated to San Diego in 2014
- ^ Does not include 2 titles (2005 & 2008) won by the franchise before relocating from New York to San Diego
- ^ The city's previous WTT franchise, the San Diego Buds, additionally won 2 titles (1984 & 1985)
- ^ The Swell was announced in March 2021 as one of 14 league foundation teams, however its first season was postponed along with the rest of the entire announced Western Division
Minor league professional teams
|San Diego Gulls||Ice hockey||1966[a]||American Hockey League (AHL)||Pechanga Arena (12,920)||2|
|San Diego Loyal SC||Soccer||2020||USL Championship (USLC)||Torero Stadium (6,000)||2|
|Albion SC San Diego||Soccer||2019||National Independent Soccer Association (NISA)||varies||3|
- ^ 4th San Diego Gulls iteration of minor league professional ice hockey, re-founded in 2015. Previous teams: San Diego Gulls (1966–1974), San Diego Gulls (1990–1995) & San Diego Gulls (1995–2006)
The San Diego State Aztecs (MW), the San Diego Toreros (WCC), and the UC San Diego Tritons (BWC) are NCAA Division I teams. The Cal State San Marcos Cougars (CCAA) and Point Loma Nazarene Sea Lions (PacWest) are members of NCAA Division II, while the San Diego Christian Hawks (GSAC) and Saint Katherine Firebirds (CalPac) are a member of the NAIA.
The Government of San Diego County is defined and authorized under the California Constitution, California law, and the Charter of the County of San Diego. Much of the Government of California is in practice the responsibility of county governments such as the Government of San Diego County. The County government provides countywide services such as elections and voter registration, law enforcement, jails, vital records, property records, tax collection, public health, and social services. In addition the County serves as the local government for all unincorporated areas. Some chartered cities such as San Diego and Chula Vista provide municipal services such as police, public safety, libraries, parks and recreation, and zoning. Other cities such as Del Mar and Vista arrange to have the County provide some or all of these services on a contract basis.
The county government is composed of the elected five-member Board of Supervisors, several other elected offices and officers
|Clerk||Ernest J. Dronenburg Jr.||Republican|
|District Attorney||Summer Stephan||Republican|
and numerous county departments and entities under the supervision of the Chief Administrative Officer such as the Probation Department. In addition, several entities of the government of California have jurisdiction conterminous with San Diego County, such as the San Diego Superior Court.
Under its foundational Charter, the five-member elected San Diego County Board of Supervisors is the county legislature. The board operates in a legislative, executive, and quasi-judicial capacity. As a legislative authority, it can pass ordinances for the unincorporated areas (ordinances that affect the whole county, like posting of restaurant ratings, must be ratified by the individual city). As an executive body, it can tell the county departments what to do, and how to do it. As a quasi-judicial body, the Board is the final venue of appeal in the local planning process.
As of January 2021, the members of the San Diego County Board of Supervisors are:
|1||Nora Vargas (Vice Chair)||Democrat|
|4||Nathan Fletcher (Chair)||Democrat|
For several decades, ending in 2013, all five supervisors were Republican, white, graduates of San Diego State University, and had been in office since 1995 or earlier. The Board was criticized for this homogeneity, which was made possible because supervisors draw their own district lines and are not subject to term limits. (In 2010 voters put term limits in place, but they only apply going forward, so that each incumbent supervisor can serve an additional two terms before being termed out.) That pattern was broken in 2013 when Slater-Price retired; she was replaced by Democrat Dave Roberts, who won election to the seat in November 2012 and was inaugurated in January 2013.
The San Diego County Code is the codified law of San Diego County in the form of ordinances passed by the Board of Supervisors. The Administrative Code establishes the powers and duties of all officers and the procedures and rules of operation of all departments.
The county motto is "The noblest motive is the public good." County government offices are housed in the historic County Administration Center Building, constructed in 1935–1938 with funding from the Works Progress Administration.
|San Diego County registered voters (2019)|
|No party preference||552,538||31.6%|
|Peace and Freedom||5,255||0.3%|
San Diego County had historically been a Republican stronghold. The Republican presidential nominee carried the county in every presidential election from 1948 through 2004, except in 1992 when Bill Clinton won a plurality. In 2008, Barack Obama became the first Democratic presidential candidate to win a majority of votes in San Diego County since World War II; he won a majority of county votes again in 2012. In 2020, the county voted in favor of the Democratic presidential nominee Joe Biden by 22.8%, the largest margin for a Democrat since 1936.
The city of San Diego itself is more Democratic than the county's average and has voted for Democrats in each presidential election since 1992. Various cities within the county are swing areas that have split their votes in elections since 2000. Republican strength is concentrated in North County, East County and the eastern backlands. Coronado has also traditionally been a Republican stronghold.
One unique feature of the political scene is the use of Golden Hall, a convention facility next to San Diego's City Hall, as "Election Central." The County Registrar of Voters rents the hall to distribute election results. Supporters and political observers gather to watch the results come in; supporters of the various candidates parade around the hall, carrying signs and chanting; candidates give their victory and concession speeches and host parties for campaign volunteers and donors at the site; and television stations broadcast live from the floor of the convention center. The atmosphere at Election Central on the evening of election day has been compared to the voting portion of a political party national convention.
On November 4, 2008, San Diego County voted 53.71% for Proposition 8 which amended the California Constitution to ban same-sex marriages, thus restoring Proposition 22 which was overturned by a ruling from the California Supreme Court. However the city of San Diego, along with the North County coastal cities of Del Mar, Encinitas, and Solana Beach, voted against Proposition 8. La Mesa was a virtual tie for Prop 8 support, while Carlsbad supported the referendum by only a 2% margin.
Federal and state representation
In the U.S. House of Representatives, San Diego County is split between five congressional districts:
- California's 48th congressional district, represented by Republican Darrell Issa
- California's 49th congressional district, represented by Democrat Mike Levin
- California's 50th congressional district, represented by Democrat Scott Peters
- California's 51st congressional district, represented by Democrat Sara Jacobs and
- California's 52nd congressional district, represented by Democrat Juan Vargas.
In the California State Assembly, San Diego County is split between seven legislative districts:
- the 71st Assembly District, represented by Republican Kate Sanchez,
- the 75th Assembly District, represented by Republican Marie Waldron,
- the 76th Assembly District, represented by Democrat Brian Maienschein,
- the 77th Assembly District, represented by Democrat Tasha Boerner Horvath,
- the 78th Assembly District, represented by Democrat Chris Ward,
- the 79th Assembly District, represented by Democrat Akilah Weber, and
- the 80th Assembly District, represented by Democrat David Alvarez.
In the California State Senate, San Diego County is split between four legislative districts:
- the 36th Senate District, represented by Republican Janet Nguyen,
- the 38th Senate District, represented by Democrat Catherine Blakespear,
- the 39th Senate District, represented by Democrat Toni Atkins, and
- the 40th Senate District, represented by Republican Brian Jones.
The following table includes the number of incidents reported and the rate per 1,000 persons for each type of offense.
|Population and crime rates|
|Motor vehicle theft||13,938||4.55|
Cities by population and crime rates
|Cities by population and crime rates|
|City||Population||Violent crimes||Violent crime rate
per 1,000 persons
|Property crimes||Property crime rate|
per 1,000 persons
San Diego County contains three public state universities: University of California, San Diego; San Diego State University; and California State University, San Marcos. Major private universities in the county include University of San Diego (USD), Point Loma Nazarene University (PLNU), Alliant International University (AIU), and National University. It also includes three law schools, USD School of Law, California Western School of Law, and Thomas Jefferson School of Law.
Within the county there are 24 public elementary school districts, 6 high school districts, and 12 unified school districts. There are also 5 community college districts.
There are two separate public library systems in San Diego County: the San Diego Public Library serving the city of San Diego, and the San Diego County Library serving all other areas of the county. In 2010 the county library had 33 branches and two bookmobiles; circulated over 10.7 million books, CDs, DVDs, and other material formats; recorded 5.7 million visits to library branches; and hosted 21,132 free programs and events. The San Diego County Library is one of the 25 busiest libraries in the nation as measured by materials circulated.
Community College Districts
- Grossmont-Cuyamaca Community College District
- MiraCosta Community College District
- Palomar Community College District
- San Diego Community College District
- Southwestern Community College District
- School districts
- Borrego Springs Unified School District
- Bonsall Unified School District
- Carlsbad Unified School District
- Coronado Unified School District
- Mountain Empire Unified School District
- Oceanside Unified School District
- Poway Unified School District
- Ramona City Unified School District
- San Diego City Unified School District
- San Marcos Unified School District
- Vista Unified School District
- Valley Center-Pauma Unified School District
- Warner Unified School District
- Alpine Union Elementary School District
- Cajon Valley Union Elementary School District
- Cardiff Elementary School District
- Chula Vista Elementary School District
- Dehesa Elementary School District
- Del Mar Union Elementary School District
- Encinitas Union Elementary School District
- Escondido Union Elementary School District
- Fallbrook Union Elementary School District
- Jamul-Dulzura Union Elementary School District
- Julian Union Elementary School District
- La Mesa-Spring Valley School District
- Lakeside Union Elementary School District
- Lemon Grove Elementary School District
- National Elementary School District
- Rancho Santa Fe Elementary School District
- San Pasqual Union Elementary School District
- San Ysidro Elementary School District
- Santee School District
- Solana Beach Elementary School District
- South Bay Union School District
- Spencer Valley Elementary School District
- Vallecitos Elementary School District
San Diego is the headquarters of the U.S. Navy's Eleventh Naval District and is the Navy's principal location for West Coast and Pacific Ocean operations. Naval Base San Diego, California is principal home to the Pacific Fleet (although the headquarters is located in Pearl Harbor). NAS North Island is located on the north side of Coronado, and is home to Headquarters for Naval Air Forces and Naval Air Force Pacific, the bulk of the Pacific Fleet's helicopter squadrons, and part of the West Coast aircraft carrier fleet.
The Naval Special Warfare Center is the primary training center for SEALs, and is also located on Coronado. The area contains five major naval bases and the U.S. Marines base Camp Pendleton. Marine Corps Base Camp Pendleton is the major West Coast base of the United States Marine Corps and serves as its prime amphibious training base. It is located on the Southern California coast, bordered by Oceanside to the south, San Clemente to the north, and Fallbrook to the east.
- Naval Base San Diego, also known as 32nd Street Naval Station
- Naval Amphibious Base Coronado
- Naval Air Station North Island
- Naval Base Point Loma, which includes the Submarine Base and the Fleet Antisubmarine Warfare Training Center
- Space and Naval Warfare Systems Command (SPAWAR)
- Naval Medical Center San Diego, also known as Bob Wilson Naval Hospital and Balboa Naval Hospital
U.S. Marine Corps
- Marine Corps Base Camp Pendleton
- Marine Corps Air Station Miramar
- Marine Corps Recruit Depot San Diego
U.S. Coast Guard
U.S. Air Force
- San Diego Air National Guard Station, which is home to the 147th Combat Communications Squadron.
San Diego County is primarily served by media in San Diego, including TV and radio stations based in the city.
San Diego County is served by many newspapers. The major regional paper is The San Diego Union-Tribune, also known as U-T San Diego or just "The U-T" by locals, is ranked 23rd in the country (by daily circulation) as of March 2013. The Union-Tribune serves both San Diego County and neighboring Imperial County. The former North County Times, based in Escondido and serving portions of Riverside County and North County, was purchased by the Union-Tribune in 2012 and closed down. For about a year after absorbing the North County Times the Union-Tribune published a North County edition, but the regional edition was later abandoned. The Los Angeles Times is also delivered in portions of the county. Many of the area's cities, towns and neighborhoods have their own local newspapers; the Union Tribune bought eight local weeklies in 2013 and is continuing to publish them as independent local newspapers. The San Diego Daily Transcript reports business and legal news. Privately published papers like the Military Press Newspaper and the Navy Dispatch serve the military community both on and off base.
County Television Network is a public-access television cable channel, offering a "hometown blend of C-SPAN, the Lifetime, History, Travel, and Discovery channels" for the county, and funded by fees paid by cable companies.
Border crossings to Mexico
- San Ysidro Port of Entry
- Otay Mesa Port of Entry
- Otay Mesa East Port of Entry (projected opening 2024)
- Tecate Port of Entry
- Amtrak (Pacific Surfliner)
- The Coaster
- San Diego and Arizona Eastern Railway
- San Diego and Imperial Valley Railroad
Light rail and local transit
- San Diego Trolley
- San Diego Metropolitan Transit System (SDMTS/MTS)
- North County Transit District (NCTD)
The Port of San Diego
City of San Diego
- San Diego International Airport (SAN) a.k.a. Lindbergh Field
- Montgomery-Gibbs Executive Airport (MYF)
- Brown Field Municipal Airport (SDM) (formerly East Field, NAAS Otay Mesa, and NAAS Brown Field)
- McClellan-Palomar Airport (CRQ) a.k.a. Palomar Airport or Carlsbad Airport
- Gillespie Field (SEE)
- Oceanside Municipal Airport (K0KB)
Unincorporated San Diego County
- Agua Caliente Airport (L54)
- Borrego Valley Airport (L08)
- Fallbrook Community Airpark (L18)
- Jacumba Airport (L78)
- Ocotillo Airport (L90)
- Ramona Airport (RNM)
|San Diego (county seat)||1850|
|East San Diego||1912||1923||Merged into San Diego|
- Borrego Springs
- Camp Pendleton Mainside
- Camp Pendleton South
- Casa de Oro-Mount Helix
- Del Dios
- Elfin Forest
- Eucalyptus Hills
- Fairbanks Ranch
- Granite Hills
- Harbison Canyon
- Harmony Grove
- Hidden Meadows
- Jacumba Hot Springs
- Lake San Marcos
- La Presa
- Mount Laguna
- Oak Grove
- Pine Valley
- Rancho San Diego
- Rancho Santa Fe
- San Diego Country Estates
- Spring Valley
- Valley Center
- Winter Gardens
- 4S Ranch
- Agua Caliente
- Casa de Oro
- De Luz
- De Luz Heights
- East Otay Mesa
- Flinn Springs
- Jesmond Dene
- Lincoln Acres
- Ocotillo Wells
- Pala Mesa
- Palomar Mountain
- Pauma Valley
- Pine Hills
- Santa Ysabel
- Shelter Valley
- Warner Springs
Potential future incorporations and past efforts
Some CDP's and other unincorporated communities of San Diego County have explored incorporating as independent cities/towns in the past, some of which have seen efforts culminate in ballot initiatives. Alpine, Fallbrook, Lakeside, Ramona, Rancho Santa Fe and Spring Valley have been tied to various incorporation studies, organized efforts and discussions in the past. Voters in Fallbrook previously rejected incorporation in 1981 and 1987. Rancho Santa Fe residents also rejected incorporation in 1987. Among the existing cities of San Diego County, some had multiple failed incorporation efforts before ultimately succeeding in becoming a city. Lemon Grove, for example, saw incorporation measures fail in 1955, 1958 and 1964 before a successful incorporation vote in 1977. Other cities have seen incorporation success thanks to mergers of neighboring unincorporated communities. Encinitas, for example, became a city through a combined effort between the then-unincorporated communities of Cardiff-by-the-Sea, Leucadia, New Encinitas, Old Encinitas and Olivenhain in 1986. Encinitas and Solana Beach in 1986 remain the most recent examples of successful campaigns for cityhood within the County of San Diego.
San Diego County has 18 federally recognized Indian reservations, more than any other county in the United States. Although they are typical in size to other Indian reservations in California (many of which are termed "Rancherías"), they are relatively tiny by national standards, and all together total 200.2 sq mi (519 km2) of area.
- Barona Indian Reservation
- Campo Indian Reservation
- Capitan Grande Reservation
- Ewiiaapaayp Indian Reservation
- Inaja and Cosmit Indian Reservation
- Jamul Indian Village
- La Jolla Indian Reservation
- La Posta Indian Reservation
- Los Coyotes Indian Reservation
- Manzanita Indian Reservation
- Mesa Grande Indian Reservation
- Pala Indian Reservation
- Pauma and Yuima Indian Reservation
- Rincon Indian Reservation
- San Pasqual Indian Reservation
- Santa Ysabel Indian Reservation
- Sycuan Indian Reservation
- Viejas Indian Reservation
The population ranking of the following table is based on the 2020 census of San Diego County.
† county seat
|Rank||City/Town/etc.||Population (2010 Census)||Population (2020 Census)||Municipal type|
|1||† San Diego||1,307,402||1,386,932||City|
|20||Rancho San Diego||21,208||21,858||CDP|
|24||Casa de Oro-Mount Helix||18,762||19,576||CDP|
|29||Camp Pendleton South||10,616||12,468||CDP|
|30||San Diego Country Estates||10,109||10,395||CDP|
|32||Camp Pendleton Mainside||5,200||9,683||CDP|
|35||Lake San Marcos||4,437||5,328||CDP|
|41||Rancho Santa Fe||3,117||3,156||CDP|
|50||Pala Indian Reservation||1,315||1,541||AIAN|
|53||San Pasqual Reservation||1,097||1,270||AIAN|
|60||Campo Indian Reservation||362||398||AIAN|
|63||Santa Ysabel Reservation||330||263||AIAN|
|65||Pauma and Yuima Reservation||206||179||AIAN|
|66||La Jolla Reservation||476||145||AIAN|
|68||Mesa Grande Reservation||98||87||AIAN|
|70||La Posta Indian Reservation||55||50||AIAN|
|71||Los Coyotes Reservation||98||15||AIAN|
- List of breweries in San Diego County, California
- List of high schools in San Diego County, California
- List of media set in San Diego County, California
- List of museums in San Diego County, California
- List of school districts in San Diego County, California
- List of United States counties and county-equivalents
- National Register of Historic Places listings in San Diego County, California
- San Diego Association of Governments (SANDAG)
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