Philo, California

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Philo is located in California
Location in California
Coordinates: 39°03′57″N 123°26′42″W / 39.06583°N 123.44500°W / 39.06583; -123.44500Coordinates: 39°03′57″N 123°26′42″W / 39.06583°N 123.44500°W / 39.06583; -123.44500
Country United States
State California
 • Total2.037 sq mi (5.275 km2)
 • Land2.037 sq mi (5.275 km2)
 • Water0 sq mi (0 km2)  0%
Elevation331 ft (101 m)
 • Total349
 • Density170/sq mi (66/km2)
Time zoneUTC-8 (Pacific (PST))
 • Summer (DST)UTC-7 (PDT)
ZIP Code
Area code(s)707
GNIS feature IDs1659380; 2628777
U.S. Geological Survey Geographic Names Information System: Philo, California; U.S. Geological Survey Geographic Names Information System: Philo, California

Philo is a census-designated place[3] in Mendocino County, California.[2] It is located 5.5 miles (9 km) northwest of Boonville,[4] at an elevation of 331 feet (101 m).[2] The population was 349 at the 2010 census.

Philo is located in Anderson Valley in western Mendocino County. Situated along Indian Creek as it flows into the Navarro River, Philo is the home of KZYX,[5] the local public radio station. Two small specialty lumber mills in Philo are all that remain of a once vigorous timber economy in Anderson Valley. Philo is the heart of the Anderson Valley wine region.

The first post office opened in 1888.[4] The ZIP Code is 95466. The community is inside area code 707.

Two versions of how Philo was named are current: first, that its founder Cornelius Prather named it after his favorite female cousin; second, that he named it for his former home at Philo, Illinois.[4]


Philo is located at geographical coordinates 39° 3′ 57″ North, 123° 26′ 42″ West.

According to the United States Census Bureau, the CDP covers an area of 2.0 square miles (5.2 km2), all of it land.


The 2010 United States Census[6] reported that Philo had a population of 349. The population density was 171.4 people per square mile (66.2/km2). The racial makeup of Philo was 171 (49.0%) White, 2 (0.6%) African American, 4 (1.1%) Native American, 5 (1.4%) Asian, 0 (0.0%) Pacific Islander, 157 (45.0%) from other races, and 10 (2.9%) from two or more races. Hispanic or Latino of any race were 204 persons (58.5%).

The Census reported that 329 people (94.3% of the population) lived in households, 5 (1.4%) lived in non-institutionalized group quarters, and 15 (4.3%) were institutionalized.

There were 98 households, out of which 47 (48.0%) had children under the age of 18 living in them, 37 (37.8%) were opposite-sex married couples living together, 12 (12.2%) had a female householder with no husband present, 17 (17.3%) had a male householder with no wife present. There were 13 (13.3%) unmarried opposite-sex partnerships, and 2 (2.0%) same-sex married couples or partnerships. 24 households (24.5%) were made up of individuals, and 9 (9.2%) had someone living alone who was 65 years of age or older. The average household size was 3.36. There were 66 families (67.3% of all households); the average family size was 3.64.

The population was spread out, with 113 people (32.4%) under the age of 18, 37 people (10.6%) aged 18 to 24, 86 people (24.6%) aged 25 to 44, 81 people (23.2%) aged 45 to 64, and 32 people (9.2%) who were 65 years of age or older. The median age was 30.4 years. For every 100 females, there were 118.1 males. For every 100 females age 18 and over, there were 122.6 males.

There were 117 housing units at an average density of 57.4 per square mile (22.2/km2), of which 35 (35.7%) were owner-occupied, and 63 (64.3%) were occupied by renters. The homeowner vacancy rate was 0%; the rental vacancy rate was 1.5%. 104 people (29.8% of the population) lived in owner-occupied housing units and 225 people (64.5%) lived in rental housing units.


Students in Philo attend Anderson Valley Elementary School and Anderson Valley Junior-Senior High School. Both are located in Boonville.

Notable residents[edit]


In the state legislature, Philo is in the 2nd Senate District, represented by Democrat Mike McGuire,[7] and the 2nd Assembly District, represented by Democrat Jim Wood.[8]

Federally, Philo is in California's 2nd congressional district, represented by Democrat Jared Huffman.[9]

See also[edit]

Mendocino County Public Broadcasting, Philo, CA

Notes and references[edit]

  1. ^ U.S. Census Archived 2012-07-02 at the Wayback Machine
  2. ^ a b c U.S. Geological Survey Geographic Names Information System: Philo, California
  3. ^ U.S. Geological Survey Geographic Names Information System: Philo, California
  4. ^ a b c Durham, David L. (1998). California's Geographic Names: A Gazetteer of Historic and Modern Names of the State. Clovis, Calif.: Word Dancer Press. p. 122. ISBN 1-884995-14-4.
  5. ^ "KZYX - Mendocino County Public Broadcasting, listener support community radio". Retrieved 23 April 2018.
  6. ^ "2010 Census Interactive Population Search: CA - Philo CDP". U.S. Census Bureau. Archived from the original on July 15, 2014. Retrieved July 12, 2014.
  7. ^ "Senators". State of California. Retrieved March 10, 2013.
  8. ^ "Members Assembly". State of California. Retrieved March 2, 2013.
  9. ^ "California's 2nd Congressional District - Representatives & District Map". Civic Impulse, LLC. Retrieved March 1, 2013.