Thousand Oaks, California

Thousand Oaks
Mount Clef Ridge as seen from Tarantula Hill, Thousand Oaks
Thousand Oaks
Thousand Oaks
Location in California
Thousand Oaks
Location in the United States
Coordinates: 34°11′22″N 118°52′30″W / 34.18944°N 118.87500°W / 34.18944; -118.87500
CountryUnited States
U.S. stateCalifornia
CountyVentura County, California
RegionConejo Valley
IncorporatedOctober 7, 1964
Government
 • TypeCouncil/Manager
 • MayorMikey Taylor
 • Mayor Pro TemBob Engler
 • City council membersAl Adam
Connie Tie Gutierrez
David Newman
 • City managerDrew Powers
Area
 • City
55.40 sq mi (143.49 km2)
 • Land55.26 sq mi (143.11 km2)
 • Water0.15 sq mi (0.38 km2)  0.26%
Elevation
890 ft (270 m)
Population
 • City
126,966
 • Rank2nd in Ventura County
49th in California
 • Density2,297.8/sq mi (887.19/km2)
 • Urban
 (Thousand Oaks, CA)
213,986 (US: 181st)
 • Urban density2,668.3/sq mi (1,030.2/km2)
 • Metro843,843 (US: 71st)
Time zoneUTC−8 (Pacific Time Zone)
 • Summer (DST)UTC−7 (PDT)
ZIP Codes
91320, 91359–91362
Area codes805/820
FIPS code06-78582
GNIS feature IDs1661567, 2412065
Websitetoaks.gov

Thousand Oaks is the second-largest city in Ventura County, California, located in the northwestern part of Greater Los Angeles. Approximately 15 miles (24 km) from the city of Los Angeles and 40 miles (64 km) from Downtown Los Angeles, it is named after the many oak trees present in the area.

The city forms the central populated core of the Conejo Valley. Thousand Oaks was incorporated in 1964 and has since expanded to the west and east. Two-thirds of the master-planned community surrounding Westlake and most of Newbury Park were annexed by the city during the late 1960s and 1970s. The Los Angeles County–Ventura County line forms the city's eastern border with the city of Westlake Village. The population was 126,966 at the 2020 census, up from 126,683 at the 2010 census.