San Dimas, California Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of San Dimas, California is 34,099 as of the 2023 American Community Survey, making it the 244th-largest city in California. The median household income is $105,833, the median home value is $756,200, and the median age is 42.8.
The population has declined 0.5% since 2010 (33,377 → 33,226).
34,099
Population
2268
People / sq mi
$105,833
Median Income
$756,200
Median Home Value
San Dimas covers 15.0 sq mi of land at 2268 people per square mile.
About San Dimas, CA
San Dimas is a city in California with a population of 34,099. It ranks #244 among cities in California by population. The median age is 42.8, older than the national median. The population is 47.9% male and 52.1% female.
The median household income in San Dimas is $105,833, above the US median of $74,580. 6.2% of residents live below the federal poverty level. Home values sit at a median of $756,200, with monthly rent averaging $2,232. The homeownership rate of 71.4% is higher than the national rate of 64.8%.
Educational attainment in San Dimas reflects 40.3% of adults 25 and older holding a bachelor's degree or higher, above the national average of 34.3%. Roughly 15.3% of workers primarily work from home, similar to the national work-from-home rate of 14.2%. The average commute is 31.9 minutes each way.
San Dimas city Population History (2010-2024)
The city of San Dimas city had a population of 33,377 in 2010 and 33,226 in 2024, a -0.5% growth over 14 years. The peak was 34,795 in 2020. Average annual growth rate: -0.02%.
33,226
Population (2024)
33,377
Population (2010)
34,795
Peak (2020)
-0.02%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 33,377 |
| 2011 | 33,509 |
| 2012 | 33,637 |
| 2013 | 33,745 |
| 2014 | 34,319 |
| 2015 | 34,344 |
| 2016 | 34,236 |
| 2017 | 34,128 |
| 2018 | 33,881 |
| 2019 | 33,621 |
| 2020 | 34,795 |
| 2021 | 34,077 |
| 2022 | 33,612 |
| 2023 | 33,337 |
| 2024 | 33,226 |
Race & Ethnicity
| White | 46.2% |
| Black or African American | 3.4% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 3.2% |
| Two or More Races | 0.2% |
Economy & Income
$105,833
Median Household Income
$49,568
Per Capita Income
6.2%
Poverty Rate
3.1%
Unemployment Rate
Housing
$756,200
Median Home Value
$2,232
Median Rent
71.4%
Owner-Occupied
Education
92.8%
High School+
40.3%
Bachelor's+
Commute
0.8%
Drive Alone
71.6%
Public Transit
15.3%
Work From Home
31.9 min
Avg Commute
Community Profile
12.4%
Foreign Born
63.7%
Non-English at Home
4.8%
Veterans
14.5%
With Disability
93.8%
Health Insurance
94.9%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 25.7% |
| Manufacturing | 10.2% |
| Finance, Insurance & Real Estate | 9.8% |
| Construction | 8.0% |
| Information | 6.8% |
| Education, Health Care & Social Services | 6.7% |
| Public Administration | 6.4% |
| Arts, Entertainment & Food Services | 5.5% |
| Retail Trade | 4.4% |
| Transportation & Warehousing | 2.7% |
| Agriculture & Mining | 0.3% |
Largest cities in California
Largest counties in California
Part of California
Metro areas in California
City rankings
Frequently Asked Questions
San Dimas, California has a population of 34,099 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 244th-largest city in California.
The median household income in San Dimas, California is $105,833, with 6.2% of residents living below the federal poverty level.
The median home value in San Dimas, California is $756,200, with median monthly rent at $2,232 and a homeownership rate of 71.4%.
The median age in San Dimas, California is 42.8 years. The population is 47.9% male and 52.1% female.
The population has declined 0.5% since 2010 (33,377 → 33,226).
More from California
Population 3,857,897
Population 1,385,061
Population 990,054
Population 836,321
Population 543,615
Full rankings of California cities by population
Statewide data for California
Population, race, income, age, and trends across California
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.