Tehama County, California

Tehama County, California
County of Tehama
Images, from top down, left to right: Black Rock in the Ishi Wilderness, State Theatre in Red Bluff, Park Headquarters in Lassen Volcanic National Park, front of the William B. Ide Adobe
Interactive map of Tehama County
Location in the state of California
Country United States
State California
RegionShasta Cascade
IncorporatedApril 9, 1856
County seatRed Bluff
Largest cityRed Bluff
Government
  TypeCouncil–Administrator
  ChairMatt Hansen
  Vice ChairPati Nolen
  Board of Supervisors
Supervisors
  • Robert Burroughs
  • Tom Walker
  • Pati Nolen
  • Matt Hansen
  • Greg Jones
  Chief AdministratorGabriel Hydrick
Area
  Total
2,962 sq mi (7,670 km2)
  Land2,950 sq mi (7,600 km2)
  Water12 sq mi (30 km2)
Highest elevation
9,239 ft (2,816 m)
Population
 (2020)
  Total
65,829
  Estimate 
(2024)
64,451
  Density22/sq mi (8.6/km2)
GDP
  Total$2.517 billion (2022)
Time zoneUTC-8 (Pacific Standard Time)
  Summer (DST)UTC-7 (Pacific Daylight Time)
Congressional district1st
Websitewww.co.tehama.ca.us

Tehama County (/təˈhmə/ tə-HAY-mə) is a county located in the northern part of the U.S. state of California. As of the 2020 census, the population was 65,829. The county seat and largest city is Red Bluff. Tehama County comprises the Red Bluff, California micropolitan statistical area, which is also included in the Redding-Red Bluff, California combined statistical area. The county is bisected by the Sacramento River.