Colusa County CAGenWeb

Colusa County is available for adoption.

 If you have a local connection to Colusa County or an interest in California in general,
 Please consider joining the CAGenWeb as a County Coordinator.

 
 Contact Bob Jenkins if you are interested.

 In addition:,  we would appreciate any contribution that you would like to make  to this
 site:  biographies, obituaries, birth, marriage, death info,  grave info, photographs....etc

Colusa County, California

Colusa County stands among California’s original 27 counties, created at statehood in 1850. Its earliest roots stretch far deeper, beginning with the Patwin band of the Wintun people, whose villages lined the Sacramento River and extended west into the foothills. One of these villages—Korusi—gave rise to the county’s name and the site of today’s city of Colusa.

During the Mexican era, the region formed part of the 1844 Rancho Colus land grant, later becoming a focal point for early American settlement in the Sacramento Valley. As population grew, the county’s boundaries shifted: portions were ceded to Tehama County in 1856 and to Glenn County in 1891, though Colusa still retains many of the earliest records for the region.

Agriculture quickly became the backbone of local life. The fertile basin floor supported crops such as grains, beans, fruits, nuts, and—most famously—rice, which remains a defining feature of the county’s landscape and economy today. Small towns, river landings, and farming communities developed along transportation routes and waterways, shaping the family histories of generations who lived and worked in the valley.