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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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.
Belmont Cdp, MA Climate
Belmont Cdp, MA has an average annual temperature of 9.7°C (49°F) and receives about 1156 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
9.7°C
Avg Temp
1156
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -3° / 26° | 102 mm |
| February | -2° / 28° | 87 mm |
| March | 3° / 37° | 104 mm |
| April | 8° / 47° | 97 mm |
| May | 14° / 58° | 90 mm |
| June | 19° / 66° | 89 mm |
| July | 23° / 73° | 88 mm |
| August | 22° / 71° | 94 mm |
| September | 17° / 63° | 93 mm |
| October | 11° / 52° | 100 mm |
| November | 6° / 43° | 109 mm |
| December | 0° / 32° | 103 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Belmont Cdp, MA
The most comfortable months to visit Belmont Cdp, MA are typically August, July and June, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 29°C high). The coldest is January (near -9°C low). November is usually the wettest month.
Where to stay near Belmont
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.