Colusa County | Colusa County Travel GuideAbout Colusa County. Located in California’s Central Valley, 1,156-square-mile Colusa County was one of the 27 original counties established at California’s …
Colusa, California - Wikipedia, the free encyclopediaColusa (formerly, Colusi, Colusi's, Koru, and Salmon Bend) is the county seat of Colusa County, California. The population was 5,971 at the 2010 census, up from …