Santa Ana population
Santa Ana, California had an estimated 315,586 residents on July 1, 2025, the 65th-largest city in the US. That is down 2.8% since the 2010 Census and down 6.6% since 2000.
- Population, July 2025
- 315,586+1.6% since April 2020
- People per sq mile
- 11,52827.4 sq mi of land
- Median age
- 34.711.4% are 65 or older
- Households with kids
- 42.1%with anyone under 18
Population by year, 2000 to 2025
| Year | Population | Change | Basis |
|---|---|---|---|
| 2025 | 315,586 | +787 | Estimate, July 1 |
| 2024 | 314,799 | +2,552 | Estimate, July 1 |
| 2023 | 312,247 | +765 | Estimate, July 1 |
| 2022 | 311,482 | +422 | Estimate, July 1 |
| 2021 | 311,060 | +526 | Estimate, July 1 |
| 2020 | 310,534 | -20,376 | April 2020 estimates base |
| 2019 | 330,910 | -1,714 | Estimate, July 1 |
| 2018 | 332,624 | -1,281 | Estimate, July 1 |
| 2017 | 333,905 | -480 | Estimate, July 1 |
| 2016 | 334,385 | -138 | Estimate, July 1 |
| 2015 | 334,523 | +1,230 | Estimate, July 1 |
| 2014 | 333,293 | +1,502 | Estimate, July 1 |
| 2013 | 331,791 | +2,027 | Estimate, July 1 |
| 2012 | 329,764 | +2,033 | Estimate, July 1 |
| 2011 | 327,731 | +3,203 | Estimate, July 1 |
| 2010 | 324,528 | +176 | 2010 Census (April 1) |
| 2009 | 324,352 | +136 | Estimate, July 1 |
| 2008 | 324,216 | -244 | Estimate, July 1 |
| 2007 | 324,460 | -3,180 | Estimate, July 1 |
| 2006 | 327,640 | -4,025 | Estimate, July 1 |
| 2005 | 331,665 | -3,376 | Estimate, July 1 |
| 2004 | 335,041 | -1,822 | Estimate, July 1 |
| 2003 | 336,863 | -793 | Estimate, July 1 |
| 2002 | 337,656 | -591 | Estimate, July 1 |
| 2001 | 338,247 | +540 | Estimate, July 1 |
| 2000 | 337,707 | April 2000 estimates base |
Year-to-year changes across 2010 and 2020 mix census counts with estimates, so small jumps at those years are partly method changes.
Frequently asked questions
What is the population of Santa Ana in 2025?
The Census Bureau estimates Santa Ana had 315,586 residents on July 1, 2025, making it the 65th-largest city in the US.
Is Santa Ana growing?
No. Santa Ana has shrunk 2.8% since the 2010 Census (324,528 people), and grown 1.6% since 2020.
What was the population of Santa Ana in 2000?
About 337,707 (the Census Bureau's April 2000 estimates base). By the 2010 Census it was 324,528.
How dense is Santa Ana?
Santa Ana has about 11,528 people per square mile of land (27.4 square miles).
More about Santa Ana
See cost of living, jobs and commutes in Santa Ana, Santa Ana weather by month, or every Santa Ana ZIP code. For the biggest cities in the country, see the largest US cities.