Belmont, California Demographics & Population 2026
During the 2020–2024 ACS period, Belmont, California had a total population of 27,337, the 283rd largest city in California, with a median household income of $205,297, which is 107% higher than the state average. The poverty rate is 6.9%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 107% above the state average — one of the wealthiest communities in California.
- 69.7% of adults hold a bachelor's degree or higher — top 10% in California.
- Housing affordability is a challenge — homes cost 9.7x the median household income.
Belmont Quick Facts
How Belmont Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 27,505 | 27,337 | -0.6% |
| Median household income | $207,609 | $205,297 | -1.1% |
| Median home value | $2,000,000+ | $2,000,000+ | +0.0% |
How Belmont Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A diverse community with significant representation from multiple racial and ethnic groups.
State average: 70 | National average: 61
Education
Educational Attainment (Adults 25+)
Belmont Rankings in California
Explore California Rankings
Other Cities in San Mateo County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| San Mateo | 103,105 | $153,504 | 8.2% | $1,618,700 |
| Daly City | 101,964 | $123,547 | 7.7% | $1,115,000 |
| Redwood City | 82,447 | $157,814 | 6.3% | $1,801,700 |
| South San Francisco | 64,305 | $136,578 | 6.7% | $1,188,800 |
| San Bruno | 42,307 | $141,272 | 6.0% | $1,207,500 |
| Pacifica | 37,261 | $160,523 | 5.8% | $1,249,800 |
| Foster City | 32,792 | $199,143 | 4.1% | $1,838,200 |
| Menlo Park | 32,727 | $210,025 | 5.8% | $2,000,000+ |
| Burlingame | 30,525 | $174,000 | 7.1% | $2,000,000+ |
| San Carlos | 29,614 | $237,470 | 3.3% | $2,000,000+ |
Cities Similar to Belmont
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| North Tustin | 25,807 | $177,351 | $1,347,800 | 62.0% | 5.2% |
| Lafayette | 25,285 | $228,250 | $2,000,000+ | 79.0% | 2.9% |
| Mountain House | 25,513 | $177,163 | $946,900 | 54.1% | 5.1% |
| San Carlos | 29,614 | $237,470 | $2,000,000+ | 70.2% | 3.3% |
| Menlo Park | 32,727 | $210,025 | $2,000,000+ | 72.5% | 5.8% |
Population Overview
Belmont is a mid-sized community located in California, within San Mateo County. The total population is 27,337. It ranks as the 283rd most populous out of 1,570 Census-designated places in California.
Age Demographics
The median age in Belmont is 39.8 years. This is 5% higher than the state median of 37.9 years.
Economy, Income & Housing
The median household income in Belmont is $205,297. This is 107% higher than the state median of $99,122. It is also 154% higher than the national median of $80,734. The poverty rate stands at 6.9%. This is 42% lower than the state poverty rate of 12.0%. The unemployment rate is 7.2%. This is 9% higher than the state rate of 6.6%. The median home value is $2,000,000+. Housing costs are 172% higher than the state median of $734,700. The home-value-to-income ratio of 9.7x suggests that housing affordability is a significant concern for many residents. 54.9% of occupied housing units are owner-occupied. This homeownership rate is 2% lower than the state average of 55.9%.
Race & Ethnicity
The largest racial or ethnic group in Belmont is White (non-Hispanic), making up 45.8% of the population. Asian residents account for 30.6%. The Black or African American population (1.8%) is well below the state average of 5.2%. The Hispanic or Latino population (13.1%) is well below the state average of 40.2%. The Asian population is significantly higher than the state average (30.6% vs 15.3%).
Education
69.7% of residents aged 25 and older hold a bachelor's degree or higher. This places Belmont in the top 10% of all cities in the state for educational attainment. This is 88% higher than the state rate of 37.1%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 95.5%. Notably, 34.8% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for Belmont, California is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against California state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,570 Census-designated places in California. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
Free data download: Get all California city and county demographics as CSV. Download Cities CSV | Download Counties CSV
Frequently Asked Questions
What is the population of Belmont, California?
Belmont, California has a population of 27,337 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Belmont, CA?
The median household income in Belmont is $205,297, which is 154% higher than the national median of $80,734.
What is the poverty rate in Belmont, CA?
The poverty rate in Belmont is 6.9%. This means approximately 1,861 residents live below the federal poverty line.
What is the racial makeup of Belmont, California?
Belmont's population is 45.8% White, 1.8% Black, 13.1% Hispanic/Latino, and 30.6% Asian.
What is the median home value in Belmont, CA?
The median home value in Belmont is $2,000,000+. The home-value-to-income ratio is 9.7x.
How educated is Belmont, California?
69.7% of adults (25+) in Belmont hold a bachelor's degree or higher, and 34.8% hold a graduate or professional degree.