Ventura County, California

Ventura County
Interactive map of Ventura County
Location in the state of California
CountryUnited States
StateCalifornia
RegionGreater Los Angeles
California Central Coast
CreatedMarch 22, 1872
EstablishedJanuary 1, 1873
Named afterMission San Buenaventura, which was named after Saint Bonaventure
County seatVentura, California
Largest cityOxnard, California (population)
Thousand Oaks, California (area)
Government
 • TypeCouncil–CEO
 • BodyBoard of Supervisors
 • ChairJeff Gorell
 • Vice ChairVianey Lopez
 • Board of Supervisors
Supervisors
  • Matt LaVere
  • Jeff Gorell
  • Kelly Long
  • Janice S. Parvin
  • Vianey Lopez
 • Chief executive officerSevet Johnson
Area
 • Total
2,208 sq mi (5,720 km2)
 • Land1,843 sq mi (4,770 km2)
 • Water365 sq mi (950 km2)
Highest elevation
8,835 ft (2,693 m)
Population
 • Total
843,843
 • Estimate 
(2024)
835,427
 • Density458/sq mi (177/km2)
GDP
 • Total$62.329 billion (2022)
Time zoneUTC−8 (Pacific Time Zone)
 • Summer (DST)UTC−7 (Pacific Daylight Time)
Area codes805/820, 818/747
FIPS code06-111
GNIS feature ID277320
Congressional districts24th, 26th, 32nd
Websiteventuracounty.gov

Ventura County (/vɛnˈtʊərə/ ) is a county located in the southern part of the U.S. state of California. As of the 2020 census, the population was 843,843. The largest city is Oxnard, California, and the county seat is the city of Ventura, California.

Ventura County comprises the Oxnard–Thousand Oaks–Ventura, CA Metropolitan Statistical Area, which is part of the Greater Los Angeles area (Los Angeles–Long Beach, CA Combined Statistical Area). It is also considered the southernmost county along the California Central Coast.

Two of the Channel Islands are part of the county: Anacapa Island, which is the most visited island in Channel Islands National Park, and San Nicolas Island.