Colusa County, county in California, United States. As of 2020 county had an estimated population of 21,558 inhabitants. The county was created 172 years ago in 1850. Its county seat is "Colusa".
There are 1 city/town in Colusa County, CA. The largest city of Colusa County is Williams with a population of 5,400.
Cities, Towns, Neighborhoods & Other Populated Places in Colusa County.
|Williams||City in Colusa County, California, United States||Colusa||5,400|