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Colusa County, California
Colusa County is Sacramento Valley farm country on the west side of the river, where Colusa and Williams sit among rice fields, tomatoes, and expanding almond and walnut acreage. Interstate 5 frontage at Williams is the county's main commercial and industrial opportunity, with Williamson Act contracts, irrigation-district boundaries, and Sacramento River floodplain limiting conversion elsewhere.
Open the live Colusa County map →
Colusa County at a glance
- 22,000Population (2024)
- ColusaCounty seat
- 1,151 sq miLand area
- 19 / sq miDensity
- $75,000Median household income
- $375,000Median home value
What the live Colusa County map shows
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- City Boundaries: 2
- School Boundaries: 6
- Congressional Districts: 1
- Soils: 204
- State House Districts: 1
- State Senate Districts: 1
- Voter Precincts: 19
- Wetlands: 6
Cities and towns in Colusa County
Colusa, Williams.
Neighboring counties
- Lake County, CA · map
- Glenn County, CA · map
- Sutter County, CA · map
- Yolo County, CA · map
- Butte County, CA · map