Belmont, California Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Belmont, California is 27,505 as of the 2023 American Community Survey, making it the 282nd-largest city in California. The median household income is $207,609, the median home value is $2,000,001, and the median age is 40.4.
The population has grown 4.9% since 2010 (25,870 → 27,132).
27,505
Population
5941
People / sq mi
$207,609
Median Income
$2,000,001
Median Home Value
Belmont covers 4.6 sq mi of land at 5941 people per square mile.
About Belmont, CA
Belmont is a city in California with a population of 27,505. It ranks #282 among cities in California by population. The median age is 40.4, older than the national median. The population is 49.3% male and 50.7% female.
The median household income in Belmont is $207,609, above the US median of $74,580. 4.4% of residents live below the federal poverty level. Home values sit at a median of $2,000,001, with monthly rent averaging $2,894. The homeownership rate of 56.0% is lower than the national rate of 64.8%.
Educational attainment in Belmont reflects 68.9% of adults 25 and older holding a bachelor's degree or higher, above the national average of 34.3%. Roughly 31.0% of workers primarily work from home, noticeably above the national work-from-home rate of 14.2%. The average commute is 29.5 minutes each way.
Belmont city Population History (2010-2024)
The city of Belmont city had a population of 25,870 in 2010 and 27,132 in 2024, a 4.9% growth over 14 years. The peak was 28,265 in 2020. Average annual growth rate: 0.36%.
27,132
Population (2024)
25,870
Population (2010)
28,265
Peak (2020)
0.36%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 25,870 |
| 2011 | 26,173 |
| 2012 | 26,509 |
| 2013 | 26,770 |
| 2014 | 27,013 |
| 2015 | 27,204 |
| 2016 | 27,177 |
| 2017 | 27,057 |
| 2018 | 27,075 |
| 2019 | 26,941 |
| 2020 | 28,265 |
| 2021 | 27,346 |
| 2022 | 26,965 |
| 2023 | 26,927 |
| 2024 | 27,132 |
Race & Ethnicity
| White | 50.7% |
| Black or African American | 2.1% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.1% |
| Two or More Races | 0.0% |
Economy & Income
$207,609
Median Household Income
$98,669
Per Capita Income
4.4%
Poverty Rate
4.6%
Unemployment Rate
Housing
$2,000,001
Median Home Value
$2,894
Median Rent
56.0%
Owner-Occupied
Education
96.0%
High School+
68.9%
Bachelor's+
Commute
4.4%
Drive Alone
54.6%
Public Transit
31.0%
Work From Home
29.5 min
Avg Commute
Community Profile
18.4%
Foreign Born
62.6%
Non-English at Home
3.5%
Veterans
8.5%
With Disability
97.7%
Health Insurance
97.7%
Internet Access
Employment by Industry
| Finance, Insurance & Real Estate | 29.6% |
| Professional, Scientific & Management | 19.2% |
| Manufacturing | 9.9% |
| Transportation & Warehousing | 8.2% |
| Education, Health Care & Social Services | 6.8% |
| Information | 5.9% |
| Arts, Entertainment & Food Services | 3.2% |
| Construction | 3.1% |
| Public Administration | 3.0% |
| Retail Trade | 2.8% |
| Agriculture & Mining | 0.1% |
Largest cities in California
Largest counties in California
Part of California
Metro areas in California
City rankings
Frequently Asked Questions
Belmont, California has a population of 27,505 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 282nd-largest city in California.
The median household income in Belmont, California is $207,609, with 4.4% of residents living below the federal poverty level.
The median home value in Belmont, California is $2,000,001, with median monthly rent at $2,894 and a homeownership rate of 56.0%.
The median age in Belmont, California is 40.4 years. The population is 49.3% male and 50.7% female.
The population has grown 4.9% since 2010 (25,870 → 27,132).
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.