Belmont, Massachusetts Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Belmont, Massachusetts is 27,009 as of the 2023 American Community Survey, making it the 61st-largest city in Massachusetts. The median household income is $178,188, the median home value is $1,108,800, and the median age is 42.4.
27,009
Population
5812
People / sq mi
$178,188
Median Income
$1,108,800
Median Home Value
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Belmont covers 4.6 sq mi of land at 5812 people per square mile.
About Belmont, MA
Educational attainment is the headline number in Belmont: 80.2% of adults 25 and older have a four-year degree. Belmont is a city in Massachusetts with a population of 27,009.
Earnings sit at the high end: a median household income of $178,188, above the US median of $78,538. Poverty is among the lowest of comparable US cities, at 2.3% — below the national 12.4%. Real estate commands a premium here — a median home value of $1,108,800, with typical rent around $2,387.
The population is unusually well-credentialed for US cities — 80.2% of adults have a four-year degree, above the national 35.0%. An unusually large 28.4% of workers are remote, above the national 14.0%, and the average commute runs about 30 minutes each way.
The education numbers are the throughline: a college-heavy population in Belmont usually coincides with higher incomes and a workforce concentrated in professional and information industries.
Race & Ethnicity
| White | 69.6% |
| Black or African American | 1.7% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.2% |
| Two or More Races | 0.0% |
Economy & Income
$178,188
Median Household Income
$92,602
Per Capita Income
2.3%
Poverty Rate
3.1%
Unemployment Rate
Housing
$1,108,800
Median Home Value
$2,387
Median Rent
64.2%
Owner-Occupied
Education
97.6%
High School+
80.2%
Bachelor's+
Commute
11.1%
Drive Alone
48.9%
Public Transit
28.4%
Work From Home
29.5 min
Avg Commute
Community Profile
28.3%
Foreign Born
69.5%
Non-English at Home
2.4%
Veterans
7.9%
With Disability
98.2%
Health Insurance
96.8%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 29.1% |
| Finance, Insurance & Real Estate | 27.1% |
| Manufacturing | 10.8% |
| Information | 7.7% |
| Education, Health Care & Social Services | 5.0% |
| Public Administration | 3.2% |
| Transportation & Warehousing | 2.9% |
| Construction | 2.6% |
| Arts, Entertainment & Food Services | 2.2% |
| Retail Trade | 1.2% |
| Agriculture & Mining | 0.2% |
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City rankings
Frequently Asked Questions
Belmont, Massachusetts has a population of 27,009 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 61st-largest city in Massachusetts.
The median household income in Belmont, Massachusetts is $178,188, with 2.3% of residents living below the federal poverty level.
The median home value in Belmont, Massachusetts is $1,108,800, with median monthly rent at $2,387 and a homeownership rate of 64.2%.
The median age in Belmont, Massachusetts is 42.4 years. The population is 47.7% male and 52.3% female.
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.