Glenn County, California

Glenn County
Location in the state of California
Interactive map of Glenn County
CountryUnited States
StateCalifornia
RegionSacramento Valley
Incorporated1891
Named afterHugh J. Glenn
County seatWillows
Largest cityOrland
Government
 • TypeCouncil–CAO
 • ChairGrant Carmon
 • Vice ChairTony Arendt
 • Board of Supervisors
Supervisors
  • Grant Carmon
  • Monica Rossman
  • Tony Arendt
  • Jim Yoder
  • Jake Withrow
 • County Administrative OfficerScott De Moss
Area
 • Total
1,327 sq mi (3,440 km2)
 • Land1,314 sq mi (3,400 km2)
 • Water13 sq mi (34 km2)
Highest elevation
7,451 ft (2,271 m)
Population
 (2020)
 • Total
28,917
 • Estimate 
(2024)
28,304
 • Density22.01/sq mi (8.497/km2)
GDP
 • Total$1.249 billion (2022)
Time zoneUTC−8 (Pacific)
 • Summer (DST)UTC−7 (Pacific Daylight Time)
Area code530
FIPS code06-021
GNIS feature ID277275
Congressional district1st
WebsiteGlenn County, California

Glenn County is a county located in the U.S. state of California. As of the 2020 census, the population was 28,917. The county seat is Willows. It is located in the Sacramento Valley, in the northern part of the California Central Valley. The reservation of the Grindstone Indian Rancheria of Wintun-Wailaki Indians is located in Glenn County.