San Leandro population
San Leandro, California had an estimated 85,353 residents on July 1, 2025, the 445th-largest city in the US. That is up 0.5% since the 2010 Census and up 7.3% since 2000.
- Population, July 2025
- 85,353-6.2% since April 2020
- People per sq mile
- 6,40613.3 sq mi of land
- Median age
- 41.918.9% are 65 or older
- Households with kids
- 29.1%with anyone under 18
Population by year, 2000 to 2025
| Year | Population | Change | Basis |
|---|---|---|---|
| 2025 | 85,353 | -553 | Estimate, July 1 |
| 2024 | 85,906 | -365 | Estimate, July 1 |
| 2023 | 86,271 | -507 | Estimate, July 1 |
| 2022 | 86,778 | -1,618 | Estimate, July 1 |
| 2021 | 88,396 | -2,603 | Estimate, July 1 |
| 2020 | 90,999 | +678 | April 2020 estimates base |
| 2019 | 90,321 | -511 | Estimate, July 1 |
| 2018 | 90,832 | -188 | Estimate, July 1 |
| 2017 | 91,020 | -129 | Estimate, July 1 |
| 2016 | 91,149 | +518 | Estimate, July 1 |
| 2015 | 90,631 | +1,190 | Estimate, July 1 |
| 2014 | 89,441 | +1,220 | Estimate, July 1 |
| 2013 | 88,221 | +1,120 | Estimate, July 1 |
| 2012 | 87,101 | +1,086 | Estimate, July 1 |
| 2011 | 86,015 | +1,065 | Estimate, July 1 |
| 2010 | 84,950 | +790 | 2010 Census (April 1) |
| 2009 | 84,160 | +1,392 | Estimate, July 1 |
| 2008 | 82,768 | +1,381 | Estimate, July 1 |
| 2007 | 81,387 | +768 | Estimate, July 1 |
| 2006 | 80,619 | +288 | Estimate, July 1 |
| 2005 | 80,331 | -63 | Estimate, July 1 |
| 2004 | 80,394 | -299 | Estimate, July 1 |
| 2003 | 80,693 | -263 | Estimate, July 1 |
| 2002 | 80,956 | -239 | Estimate, July 1 |
| 2001 | 81,195 | +1,664 | Estimate, July 1 |
| 2000 | 79,531 | 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 San Leandro in 2025?
The Census Bureau estimates San Leandro had 85,353 residents on July 1, 2025, making it the 445th-largest city in the US.
Is San Leandro growing?
Yes. San Leandro has grown 0.5% since the 2010 Census (84,950 people), and shrunk 6.2% since 2020.
What was the population of San Leandro in 2000?
About 79,531 (the Census Bureau's April 2000 estimates base). By the 2010 Census it was 84,950.
How dense is San Leandro?
San Leandro has about 6,406 people per square mile of land (13.3 square miles).
More about San Leandro
See cost of living, jobs and commutes in San Leandro, San Leandro weather by month, or every San Leandro ZIP code. For the biggest cities in the country, see the largest US cities.