Riverside County Flag

Riverside County

State:
California
County Seat:
Riverside

Riverside County's 2026 population is estimated at 2,582,701, reflecting a 1.03% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Riverside County is the 4th largest county in California. The 2010 population was 2,201,562 and has grown 17.31% since 2010.

2,582,701
Total Population
358
Population Density (mi²)
4
Population Rank (State)
26.4K 1.03%
Annual Population Growth

Riverside County Population

Demographics

Economics and Income Statistics