Sutter County is a county located in the U.S. state of California. As of the 2020 census, the population was 99,633. The county seat is Yuba City. Sutter County is included in the Yuba City, CA Metropolitan Statistical Area as well as the Sacramento-Roseville, CA Combined Statistical Area. The county is located along the Sacramento River in the Sacramento Valley.

Yuba City is a city in Northern California and the county seat of Sutter County, California, United States. The population was 70,117 at the 2020 census. Yuba City is the principal city of the Yuba City Metropolitan Statistical Area which encompasses all of Sutter County and Yuba County. The metro area's population is 164,138. It is the 21st largest metropolitan area in California, ranked behind Redding and Chico. Its metropolitan statistical area is part of the Greater Sacramento CSA.