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
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Belmont covers 4.6 sq mi of land at 5941 people per square mile.
About Belmont, CA
Housing cost is the defining feature of Belmont: the median home is valued at $2,000,001. With 27,505 residents, Belmont is a city in California.
Earnings sit at the high end: a median household income of $207,609, above the US median of $78,538. The poverty rate, 4.4%, is on the lower side for US cities and below the national 12.4%. Home prices are steep, with the typical property valued at $2,000,001, with typical rent around $2,894.
Degree attainment is near the top of the range for US cities: 68.9% of adults 25+ hold a bachelor’s, above the 35.0% national rate. Remote work is widespread — 31.0% of workers stay home, above the national 14.0%, and the average commute runs about 30 minutes each way.
High housing values reframe the income picture in Belmont — even solid earnings stretch less against home prices and rents at this level.
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% |
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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).
Where to stay in Belmont
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.