Yolo County, California

Yolo County
Interactive map of Yolo County
Location in the state of California
Coordinates: 38°33′14″N 121°44′17″W / 38.55389°N 121.73806°W / 38.55389; -121.73806
CountryUnited States
StateCalifornia
RegionSacramento Valley
CSAGreater Sacramento
IncorporatedFebruary 18, 1850
County seatWoodland
Largest cityDavis (population)
West Sacramento (area)
Government
 • TypeCouncil–CAO
 • BodyBoard of Supervisors
 • ChairSheila Allen
 • Vice ChairAngel Barajas
 • Board of Supervisors
Supervisors
  • Oscar Villegas
  • Lucas Frerichs
  • Mary Vixie Sandy
  • Sheila Allen
  • Angel Barajas
 • Chief Administrative OfficerGerardo Pinedo
Area
 • Total
1,024 sq mi (2,650 km2)
 • Land1,015 sq mi (2,630 km2)
 • Water8.9 sq mi (23 km2)
Highest elevation
3,123 ft (952 m)
Population
 (2020)
 • Total
216,403
 • Density213.2/sq mi (82.32/km2)
GDP
 • Total$18.735 billion (2022)
Time zoneUTC-8 (Pacific Time Zone)
 • Summer (DST)UTC-7 (Pacific Daylight Time)
Area codes530, 916, 279
FIPS code06-113
GNIS feature ID277321
Congressional districts4th, 7th
Websiteyolocounty.gov

Yolo County (/ˈjl/ ; Wintun: Yo-loy), officially the County of Yolo, is a county located in the northern portion of the U.S. state of California. Yolo County was one of the original counties of California, created in 1850 at the time of statehood. As of the 2020 census, its population was 216,403. Its county seat is Woodland. Yolo County is included in the greater Sacramento metropolitan area in the Sacramento Valley.