
Santa Ana
- County:
- Orange County
- County Seat:
- Yes
- Area (mi²):
- 27.376
- State:
- California
Santa Ana is a city located in Orange County, California. Santa Ana has a 2025 population of 310,069. It is also the county seat of Orange County. Santa Ana is currently declining at a rate of -0.08% annually and its population has decreased by -0.38% since the most recent census, which recorded a population of 311,244 in 2020.
The average household income in Santa Ana is $108,847 with a poverty rate of 11.09%. The median age in Santa Ana is 34.3 years: 33.7 years for males, and 35.3 years for females.