Riverside County is located in the U.S. state of California. As of the 2020 census, its population was 2,418,185, making it the fourth-most populous county in California and the 10th-most populous in the United States. Located in Southern California, the county is named for the city of Riverside, which is its county seat.
- Country
- United States
- Inception
- 1893
- Website
- https://rivco.gov/