Colusa County, California

Colusa County, California
County
County of Colusa
Colusa County Courthouse
Seal
Interactive map of Colusa County
Location in the state of California
Country	United States
State	California
Region	Sacramento Valley
Incorporated	February 18, 1850[1]
Named for	Rancho Colus
County seat	Colusa
Largest city	Colusa (population) Williams (area)
Government
• Type	Council–CAO
• Chair[2]	Kent S. Boes
• Vice Chair[3]	Gary J. Evans
• Board of Supervisors[4]	Supervisors Jose Merced Corona Daurice Kalfsbeek Smith Kent S. Boes Gary J. Evans Janice Bell
• County Administrative Officer	Wendy G. Tyler
Area
• Total	1,156 sq mi (2,990 km2)
• Land	1,151 sq mi (2,980 km2)
• Water	5.6 sq mi (15 km2)
Highest elevation [5]	7,059 ft (2,152 m)
Population  (2020)
• Total	21,839
• Density	19/sq mi (7.3/km2)
Time zone	UTC-8 (Pacific Time Zone)
• Summer (DST)	UTC-7 (Pacific Daylight Time)
Area code	530
Congressional district	1st
Website	www.countyofcolusa.org

Colusa County (/kəˈluːsə/ ^ⓘ) is a county located in the U.S. state of California. As of the 2020 census, the population was 21,839.^[6] The county seat is Colusa.^[7] It is in the northern Sacramento Valley, northwest of the state capital, Sacramento.