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Belmont, MA

Census-designated place in Middlesex County, Massachusetts. ZIP codes: 02478.

Population

27,175

Land area

4.6sq mi

People per sq mi

5,848

ZIP codes

1

Belmont and its ZIP codes

Full map

Belmont at a glance

  • Belmont is about 6.5 times as dense as Massachusetts as a whole.
  • The median household income is $183,137, 76% above the Massachusetts median of $103,960.
  • A typical owner-occupied home is valued at $1,159,000 (about 2.1 times the Massachusetts figure) and median rent is $2,527 a month.

Local data for Belmont, MA

Counts from official public data

Housing and community stats

Belmont, MA, American Community Survey 2020-2024

Full profile

Median household income

$183,137

Poverty rate

3.6%

Median home value

$1,159,000

Median rent

$2,527/mo

Homeownership

64.7%

Bachelor's or higher

80.9%

Median age

42.9

Average commute

29.3 min

Largest reported origins and ancestries: Irish Americans (4,072), Chinese Americans (2,930), Italian Americans (2,561).

Home values and rentsIncome, education and commute

Economy and federal money

Jobs, pay, income and spending are for Middlesex County. PPP loans are for Belmont.

Details

Unemployment rate

4.0%

Aug 2026, -0.3 pts in a year

Average annual pay

$118,479

903,942 jobs, 2025

Income per person

$112,011

BEA, 2024

Federal spending

$27.4B

FY 2026, $16,790 per person

PPP loans

$55M

851 loans, 5,574 jobs reported

Middlesex County economyFederal spendingPPP loans

How people get to work

Belmont, MA, workers 16 and older. American Community Survey 5-year estimates

  • Drove alone48.2%
  • Carpooled4.3%
  • Public transit9.3%
  • Walked2.2%
  • Bicycle3.4%
  • Taxi, ride-hailing, motorcycle or other1.2%
  • Worked from home31.5%

Average one-way commute: 29.3 minutes for people who do not work from home.

Environment and hazard risk

Belmont, MA, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Relatively High

Top: ice storm

Storm events since 1996

1,840

Countywide, mostly thunderstorm wind

Flood insurance policies

4,000

1.0% of homes, county

July high / Jan low

85° / 19°F

49.4 inches of rain a year

Hazards, floods and storm historyCheck a flood zone3 historic places

Health statistics

Share of adults in Belmont, MA, CDC PLACES estimates

All 40 measures

Obesity

21.4%

U.S. 33.3% -11.9 pts

Diabetes

7.7%

U.S. 12.1% -4.4 pts

Smoking

6.6%

U.S. 12.8% -6.2 pts

Uninsured (18-64)

2.4%

U.S. 11.1% -8.7 pts

ZIP codes in Belmont

1 in or overlapping Belmont. Population shown

·

Cities near Belmont

NameDistanceLand area (sq mi)
WatertownCity1.6 mi4
ArlingtonCensus-designated place1.6 mi5.1
CambridgeCity2.6 mi6.4
WalthamCity2.8 mi12.7
MedfordCity3.7 mi8.1
SomervilleCity3.9 mi4.1
WinchesterCensus-designated place4.4 mi6
LexingtonCensus-designated place4.4 mi16.4
NewtonCity5 mi17.8
BrooklineCensus-designated place5.2 mi6.8
EverettCity6.3 mi3.4
MaldenCity6.5 mi5
WoburnCity6.8 mi12.7
StonehamCensus-designated place6.8 mi6
Hanscom AFBCensus-designated place6.8 mi0.9
MelroseCity7.4 mi4.7

Frequently asked questions

What county is Belmont, MA in?
Belmont is in Middlesex County, Massachusetts.
What ZIP codes are in Belmont, MA?
ZIP codes in or overlapping Belmont include 02478.
What is the population of Belmont, MA?
About 27,175 people live in Belmont, based on American Community Survey 5-year estimates.
What cities are near Belmont?
Nearby places include Watertown (1.6 mi), Arlington (1.6 mi), Cambridge (2.6 mi), Waltham (2.8 mi), Medford (3.7 mi).

Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023