Westminster population
Westminster, California had an estimated 88,966 residents on July 1, 2025, the 421st-largest city in the US. That is down 0.8% since the 2010 Census and up 1.1% since 2000.
- Population, July 2025
- 88,966-2% since April 2020
- People per sq mile
- 8,86210.0 sq mi of land
- Median age
- 43.219.3% are 65 or older
- Households with kids
- 33.6%with anyone under 18
Population by year, 2000 to 2025
| Year | Population | Change | Basis |
|---|---|---|---|
| 2025 | 88,966 | -261 | Estimate, July 1 |
| 2024 | 89,227 | +143 | Estimate, July 1 |
| 2023 | 89,084 | -489 | Estimate, July 1 |
| 2022 | 89,573 | -634 | Estimate, July 1 |
| 2021 | 90,207 | -609 | Estimate, July 1 |
| 2020 | 90,816 | +565 | April 2020 estimates base |
| 2019 | 90,251 | -655 | Estimate, July 1 |
| 2018 | 90,906 | -591 | Estimate, July 1 |
| 2017 | 91,497 | -280 | Estimate, July 1 |
| 2016 | 91,777 | +71 | Estimate, July 1 |
| 2015 | 91,706 | +214 | Estimate, July 1 |
| 2014 | 91,492 | +130 | Estimate, July 1 |
| 2013 | 91,362 | +390 | Estimate, July 1 |
| 2012 | 90,972 | +624 | Estimate, July 1 |
| 2011 | 90,348 | +647 | Estimate, July 1 |
| 2010 | 89,701 | +453 | 2010 Census (April 1) |
| 2009 | 89,248 | +573 | Estimate, July 1 |
| 2008 | 88,675 | +464 | Estimate, July 1 |
| 2007 | 88,211 | -343 | Estimate, July 1 |
| 2006 | 88,554 | -563 | Estimate, July 1 |
| 2005 | 89,117 | -383 | Estimate, July 1 |
| 2004 | 89,500 | +45 | Estimate, July 1 |
| 2003 | 89,455 | +306 | Estimate, July 1 |
| 2002 | 89,149 | +360 | Estimate, July 1 |
| 2001 | 88,789 | +797 | Estimate, July 1 |
| 2000 | 87,992 | 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 Westminster in 2025?
The Census Bureau estimates Westminster had 88,966 residents on July 1, 2025, making it the 421st-largest city in the US.
Is Westminster growing?
No. Westminster has shrunk 0.8% since the 2010 Census (89,701 people), and shrunk 2% since 2020.
What was the population of Westminster in 2000?
About 87,992 (the Census Bureau's April 2000 estimates base). By the 2010 Census it was 89,701.
How dense is Westminster?
Westminster has about 8,862 people per square mile of land (10.0 square miles).
More about Westminster
See cost of living, jobs and commutes in Westminster, Westminster weather by month, or every Westminster ZIP code. For the biggest cities in the country, see the largest US cities.