San Joaquin County, California

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San Joaquin County
Downtown Stockton California.jpg Lodi Arch 2.jpg
San Joaquin River Bridge at Mossdale Crossing, San Joaquin County CA USA September 2012.JPG Lockeford CA.JPG
Images, from top down, left to right: Downtown Stockton waterfront, Lodi Arch, San Joaquin River Bridge at Mossdale Crossing, Lockeford, Stanislaus River at Caswell Memorial State Park
Official seal of San Joaquin County
Location in the state of California
Location in the state of California
California's location in the United States
California's location in the United States
Country  United States
State  California
Region San Joaquin Valley
Incorporated February 18, 1850[1]
County seat Stockton
Largest city Stockton (population and area)
 • County Administrator Manuel Lopez
 • Total 1,426 sq mi (3,690 km2)
 • Land 1,391 sq mi (3,600 km2)
 • Water 35 sq mi (90 km2)
Population (2010)
 • Total 685,306
 • Density 480/sq mi (190/km2)
Time zone Pacific Standard Time (UTC-8)
 • Summer (DST) Pacific Daylight Time (UTC-7)

San Joaquin County /ˈsæn wɑːˈkn/ is a county in the U.S. state of California. As of the 2010 census, the population was 685,306.[2] The county seat is Stockton.[3]

San Joaquin County comprises the Stockton-Lodi, CA Metropolitan Statistical Area, which is also included in the San Jose-San Francisco-Oakland, CA Combined Statistical Area. The county is located in the Central Valley, just east of the nine-county San Francisco Bay Area region.

The City of San Joaquin, despite sharing its name with the county, is located in Fresno County, not San Joaquin County.


San Joaquin County was one of the original counties of California, created in 1850 at the time of statehood.

The county takes its name from the San Joaquin River. In the early 19th century Lieutenant Gabriel Moraga, commanding an expedition in the lower great California Central Valley, gave the name of San Joaquin (meaning Joachim) to the San Joaquin River that springs from the southern Sierra Nevada. San Joaquin County is also home to the site of the San Joaquin Valley's first permanent residence.

Between 1843 and 1846, during the era when California was a province of independent Mexico, five Mexican land grants were made in what became San Joaquin County: Campo de los Franceses, Pescadero (Grimes), Pescadero (Pico), Sanjon de los Moquelumnes and Thompson.

From 2007–present, the TV Show Sons of Anarchy takes place in San Joaquin County.

Tracy tire fire[edit]

On August 7, 1998, a tire fire ignited at S.F. Royster's Tire Disposal just south of Tracy on South MacArthur Drive, near Linne Rd. The tire dump held over 7 million illegally stored tires and was allowed to burn for over two years before it was extinguished. Allowing the fire to burn was considered to be a better way to avoid groundwater contamination than putting it out.[4] The cleanup cost $16.2 million and wound up contaminating local groundwater anyway.[5]


According to the U.S. Census Bureau, the county has a total area of 1,426 square miles (3,690 km2), of which 1,391 square miles (3,600 km2) is land and 35 square miles (91 km2) (2.5%) is water.[6]

San Joaquin County is centered near Stockton at about 37°54'N 121°12'W (37.9,-121.2).

National protected area[edit]


Major highways[edit]

Public transportation[edit]

San Joaquin Regional Transit District provides city bus service within Stockton. RTD also runs intercity routes throughout the county, and subscription commuter routes to Livermore, Pleasanton, Sacramento and Santa Clara County.

The cities of Lodi, Escalon, Manteca, Tracy and Ripon operate their own bus systems.

Train and bus service[edit]

Greyhound buses and Amtrak trains both stop in Stockton. Amtrak's San Joaquins Oakland-Bakersfield train stops at the San Joaquin Street Station. Amtrak's San Joaquins Sacramento-Bakersfield trains stop at the Robert J. Cabral Station which is also used by Altamont Commuter Express trains which originate in Stockton. RTD Hopper is a public bus service connecting Ripon, Manteca, Tracy, Lodi and Lathrop to Stockton.


Stockton Metropolitan Airport features passenger service to Las Vegas along with cargo service and general aviation. Other general aviation airports in the county include Lodi Airport and Tracy Municipal Airport.


The following table includes the number of incidents reported and the rate per 1,000 persons for each type of offense.

Cities by population and crime rates[edit]



Places by population, race, and income[edit]


Historical population
Census Pop.
1850 3,647
1860 9,435 158.7%
1870 21,050 123.1%
1880 24,349 15.7%
1890 28,629 17.6%
1900 35,452 23.8%
1910 50,731 43.1%
1920 79,905 57.5%
1930 102,940 28.8%
1940 134,207 30.4%
1950 200,750 49.6%
1960 249,989 24.5%
1970 290,208 16.1%
1980 347,342 19.7%
1990 480,628 38.4%
2000 563,598 17.3%
2010 685,306 21.6%
Est. 2013 704,379 2.8%
U.S. Decennial Census[16]
1790-1960[17] 1900-1990[18]
1990-2000[19] 2010-2013[2]

The 2010 United States Census reported that San Joaquin County had a population of 685,306. The racial makeup of San Joaquin County was 349,287 (51.0%) White, 51,744 (7.6%) African American, 7,196 (1.1%) Native American, 98,472 (14.4%) Asian, 3,758 (0.5%) Pacific Islander, 131,054 (19.1%) from other races, and 43,795 (6.4%) from two or more races. Hispanic or Latino of any race were 266,341 persons (38.9%).[20]


As of the census[21] of 2000, there were 563,598 people, 181,629 households, and 134,768 families residing in the county. The population density was 403 people per square mile (156/km²). There were 189,160 housing units at an average density of 135 per square mile (52/km²). The racial makeup of the county was 58.1% White, 6.7% Black or African American, 1.1% Native American, 11.4% Asian, 0.4% Pacific Islander, 16.3% from other races, and 6.1% from two or more races. 30.5% of the population were Hispanic or Latino of any race. 9.3% were of German, 5.3% Irish and 5.0% English ancestry according to Census 2000. 66.4% spoke English, 21.3% Spanish, 2.2% Tagalog, 1.8% Mon-Khmer or Cambodian, 1.1% Vietnamese and 1.1% Hmong as their first language.

There were 181,629 households out of which 40.5% had children under the age of 18 living with them, 54.3% were married couples living together, 14.0% had a female householder with no husband present, and 25.8% were non-families. 20.7% of all households were made up of individuals and 8.4% had someone living alone who was 65 years of age or older. The average household size was 3.00 and the average family size was 3.48.

In the county the population was spread out with 31.0% under the age of 18, 10.0% from 18 to 24, 28.8% from 25 to 44, 19.6% from 45 to 64, and 10.6% who were 65 years of age or older. The median age was 32 years. For every 100 females there were 99.9 males. For every 100 females age 18 and over, there were 97.2 males.

The median income for a household in the county was $41,282, and the median income for a family was $46,919. Males had a median income of $39,246 versus $27,507 for females. The per capita income for the county was $17,365. About 13.5% of families and 17.7% of the population were below the poverty line, including 23.7% of those under age 18 and 10.0% of those age 65 or over.

Metropolitan Statistical Area[edit]

The United States Office of Management and Budget has designated San Joaquin County as the Stockton-Lodi, CA Metropolitan Statistical Area.[22] The United States Census Bureau ranked the Stockton-Lodi, CA Metropolitan Statistical Area as the 76th most populous metropolitan statistical area of the United States as of July 1, 2012.[23]

The Office of Management and Budget has further designated the Stockton-Lodi, CA Metropolitan Statistical Area as a component of the more extensive San Jose-San Francisco-Oakland, CA Combined Statistical Area,[22] the 5th most populous combined statistical area and primary statistical area of the United States as of July 1, 2012.[23][24]

Government and politics[edit]


The Government of San Joaquin County is defined and authorized under the California Constitution and California law as a general law county.[25] Much of the Government of California is in practice the responsibility of county governments, such as the Government of San Joaquin 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.[26] Some chartered cities such as Stockton and Tracy provide their own municipal services such as police, public safety, libraries, parks and recreation, and zoning. Some other cities 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 (BOS), which operates in a legislative, executive, and quasi-judicial capacity; several other elected offices including the Sheriff, District Attorney, and Assessor; and numerous county departments and entities under the supervision of the County Administrator. As of December 2012 its members are:

  • Carlos Villapudua, District 1
  • Frank L. Ruhstaller, District 2
  • Steve J Bestolarides, District 3, Chairman
  • Ken Vogel, District 4, Vice-Chairman
  • Leroy Ornellas, District 5

In addition, several entities of the government of California have jurisdiction conterminous with San Joaquin County, such as the San Joaquin County Superior Court, and the California Department of Corrections and Rehabilitation operates the Deuel Vocational Institution a state prison in unincorporated San Joaquin County near Tracy.[27][28]


Voter registration statistics[edit]

Cities by population and voter registration[edit]


San Joaquin County vote
by party in presidential elections
Year GOP DEM Others
2012 41.91% 86,071 55.57% 114,121 2.0% 3,548
2008 43.8% 91,607 54.5% 113,974 2.2% 4,727
2004 53.2% 100,978 45.8% 87,012 1.0% 1,874
2000 48.9% 81,773 47.7% 79,776 3.4% 5,680
1996 44.9% 65,131 46.3% 67,253 8.8% 12,756
1992 37.8% 58,355 41.3% 63,655 20.9% 32,200
1988 54.4% 75,309 44.6% 61,699 1.0% 1,445
1984 59.6% 81,795 39.2% 53,846 1.2% 1,572
1980 55.4% 64,718 35.6% 41,551 9.1% 10,594
1976 49.6% 50,277 48.1% 48,733 2.3% 2,351
1972 55.3% 61,646 39.5% 44,062 5.2% 5,761
1968 48.0% 47,293 42.7% 42,073 9.4% 9,223
1964 38.1% 36,546 61.8% 59,210 0.1% 83
1960 52.9% 48,441 46.8% 42,855 0.4% 361
1956 54.5% 44,491 45.3% 36,941 0.2% 168
1952 55.8% 45,512 43.5% 35,432 0.7% 587
1948 49.1% 29,135 47.0% 27,908 3.9% 2,318
1944 47.2% 24,357 52.5% 27,074 0.3% 157
1940 46.3% 23,403 52.6% 26,536 1.1% 559
1936 25.6% 10,172 73.2% 29,078 1.2% 473
1932 32.2% 11,145 63.3% 21,929 4.5% 1,552
1928 61.1% 16,695 37.9% 10,343 1.1% 288
1924 48.9% 11,056 10.6% 2,397 40.5% 9,154
1920 60.9% 12,003 32.9% 6,487 6.1% 1,208

San Joaquin was historically a Republican-leaning county in Presidential and Congressional elections, and is trending Democratic. Until recently, the last Democrat to win a majority in the county before 2008 was Lyndon Johnson in 1964, although Bill Clinton won pluralities in the county in 1992 and 1996. However, in 2008, Democrat Barack Obama won 54.5% of the county's vote. In 2012, Obama even increased his share of his vote to 55.6% of the vote.

San Joaquin County is split between California's 9th and 10th congressional districts, represented by Jerry McNerney (DStockton) and Jeff Denham (R), respectively.[30]

In the State Assembly San Joaquin is part of the 10th, 15th, 17th, 26th Assembly districts. The 17th is held by Democrat Cathleen Galgiani while the 10th, 15th, and 26th are held by Democrats Alyson Huber and Joan Buchanan, and Republican Bill Berryhill, respectively. In the State Senate San Joaquin is part of the 5th and 14th districts, which are held by Democrat Lois Wolk and Republican Tom Berryhill respectively.

On November 4, 2008, San Joaquin County voted 65.5% for Proposition 8 which amended the California Constitution to ban same-sex marriages.[31]


San Joaquin County is home to 14 public school districts and numerous private schools.

District Name Enrollment Lang Arts Performance Math Performance
Escalon Unified 3,140 49.4% 46.0%
Lincoln Unified 8,712 50.9% 51.3%
Linden Unified 2,758 44.4% 45.9%
Lodi Unified 31,266 38.0% 43.1%
Manteca Unified 23,643 42.7% 42.4%
Ripon Unified 3,014 58.3% 60.3%
Stockton Unified 38,617 29.1% 38.2%
Tracy Unified 17,375 44.3% 41.2%
  Averages for all Districts[32] 45.5% 48.5%

On June 8, 2010 Lammersville Unified School District was approved in the new town of * Mountain House.[33]

The San Joaquin Delta Community College District is composed of San Joaquin Delta College located in Stockton and covers San Joaquin County as well as Rio Vista in Solano County, Galt in Sacramento County, and a large portion of Calaveras County.


San Joaquin County is home to at least one publicly traded company: Diamond Foods (NASDAQ: DMND). Pacific State Bancorp (PSBC) was based here but was closed by the California Department of Financial Institutions on August 20, 2010.


The Record and The Lodi News-Sentinel are daily newspapers. Bilingual Weekly News publishes a weekly newspaper in both Spanish and English. Tracy Press also publishes a weekly newspaper.

Big Monkey Group publishes four Stockton magazines: Weston Ranch Monthly, Brookside Monthly, Spanos Park Monthly and On the Mile. Caravan is a local community arts and events monthly tabloid. The Central Valley Business Journal is a monthly business tabloid. San Joaquin Magazine is a regional lifestyle magazine covering Stockton, Lodi, Tracy, and Manteca. The Downtowner is a free monthly guide to downtown Stockton's events, commerce, real estate, and other cultural and community happenings.

Poets' Espresso Review is a periodical that has been based in Stockton, mostly distributed by mail, since summer of 2005. Artifact is a San Joaquin Delta College periodical based in Stockton since December 2006, featuring writing in all genres, photography, and visual media by students, staff and faculty as well as community members. The Pacifican, University of the Pacific's newspaper since 1908 features News, Opinion, Lifestyles, and Sports pertinent to the Pacific campus and surrounding Stockton community.



Census-designated places[edit]

Unincorporated communities[edit]

See also[edit]


  1. ^ Only larceny-theft cases involving property over $400 in value are reported as property crimes.
  2. ^ Other = Some other race + Two or more races
  3. ^ Native American = Native Hawaiian or other Pacific Islander + American Indian or Alaska Native
  4. ^ a b Percentage of registered voters with respect to total population. Percentages of party members with respect to registered voters follow.


  1. ^ "Chronology". California Counties. California State Association of Counties. Retrieved 2012-05-14. 
  2. ^ a b "State & County QuickFacts". United States Census Bureau. Retrieved May 30, 2014. 
  3. ^ "Find a County". National Association of Counties. Retrieved 2011-06-07. 
  4. ^ Rubber Threat: Tracy tire fire highlights old problem. Lodi News-Sentinel. 18 August 1998.
  5. ^ Breitler, Alex. Byproducts from 1998 tire fire found in water. Record. 20 Dec. 2005.
  6. ^ "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23. 
  7. ^ a b c d e f g h i j k l m n o p q U.S. Census Bureau. American Community Survey, 2011 American Community Survey 5-Year Estimates, Table B02001. American FactFinder. Retrieved 2013-10-26.
  8. ^ a b c d e f g h i j Office of the Attorney General, Department of Justice, State of California. Table 11: Crimes – 2009. Retrieved 2013-11-14.
  9. ^ a b c United States Department of Justice, Federal Bureau of Investigation. Crime in the United States, 2012, Table 8 (California). Retrieved 2013-11-14.
  10. ^ a b U.S. Census Bureau. American Community Survey, 2011 American Community Survey 5-Year Estimates, Table B03003. American FactFinder. Retrieved 2013-10-26.
  11. ^ a b U.S. Census Bureau. American Community Survey, 2011 American Community Survey 5-Year Estimates, Table B19301. American FactFinder. Retrieved 2013-10-21.
  12. ^ a b U.S. Census Bureau. American Community Survey, 2011 American Community Survey 5-Year Estimates, Table B19013. American FactFinder. Retrieved 2013-10-21.
  13. ^ a b U.S. Census Bureau. American Community Survey, 2011 American Community Survey 5-Year Estimates, Table B19113. American FactFinder. Retrieved 2013-10-21.
  14. ^ a b U.S. Census Bureau. American Community Survey, 2011 American Community Survey 5-Year Estimates. American FactFinder. Retrieved 2013-10-21.
  15. ^ U.S. Census Bureau. American Community Survey, 2011 American Community Survey 5-Year Estimates, Table B01003. American FactFinder. Retrieved 2013-10-21.
  16. ^ "U.S. Decennial Census". United States Census Bureau. Retrieved May 30, 2014. 
  17. ^ "Historical Census Browser". University of Virginia Library. Retrieved May 30, 2014. 
  18. ^ "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved May 30, 2014. 
  19. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000". United States Census Bureau. Retrieved May 30, 2014. 
  20. ^ "2010 Census P.L. 94-171 Summary File Data". United States Census Bureau. 
  21. ^ "American FactFinder". United States Census Bureau. Retrieved 2011-05-14. 
  22. ^ a b "OMB Bulletin No. 13-01: Revised Delineations of Metropolitan Statistical Areas, Micropolitan Statistical Areas, and Combined Statistical Areas, and Guidance on Uses of the Delineations of These Areas". United States Office of Management and Budget. February 28, 2013. Retrieved March 20, 2013. 
  23. ^ a b "Table 1. Annual Estimates of the Population of Metropolitan and Micropolitan Statistical Areas: April 1, 2010 to July 1, 2012" (CSV). 2012 Population Estimates. United States Census Bureau, Population Division. March 2013. Retrieved March 20, 2013. 
  24. ^ "Table 2. Annual Estimates of the Population of Combined Statistical Areas: April 1, 2010 to July 1, 2012" (CSV). 2012 Population Estimates. United States Census Bureau, Population Division. March 2013. Retrieved March 20, 2013. 
  25. ^ "Counties of California". San Joaquin County website. Retrieved 29 December 2012. 
  26. ^ "About County Government". Guide to Government. League of Women Voters of California. Retrieved 28 December 2012. 
  27. ^ "Deuel Vocational Institution." California Department of Corrections and Rehabilitation. Retrieved on June 6, 2011. "23500 Kasson Road Tracy, CA 95376"
  28. ^ "Tracy city, California." U.S. Census Bureau. Retrieved on June 6, 2011.
  29. ^ a b c d e f g h i j k l m n o p q California Secretary of State. February 10, 2013 - Report of Registration. Retrieved 2013-10-31.
  30. ^ "California's 9th Congressional District - Representatives & District Map". Civic Impulse, LLC. Retrieved March 9, 2013. 
  31. ^ County Results - Election Center 2008 - Elections & Politics from
  32. ^ A statewide average for this value is not computed by the California Department of Education.
  33. ^ "Voters approve Lammersville school unification". Tracy press. Jun 8, 2010. Retrieved Jun 8, 2010. 

External links[edit]