Orange County Flag

Orange County

State:
California
County Seat:
Santa Ana

Orange County's 2026 population is estimated at 3,202,179, reflecting a 0.5% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Orange County is the 3rd largest county in California. The 2010 population was 3,016,376 and has grown 6.16% since 2010.

3,202,179
Total Population
4,038
Population Density (mi²)
3
Population Rank (State)
15.9K 0.5%
Annual Population Growth

Orange County Population

Demographics

Economics and Income Statistics