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Waltham, MA

City in Middlesex County, Massachusetts. ZIP codes: 02451, 02452, 02453.

Population

64,902

Land area

12.7sq mi

People per sq mi

5,093

ZIP codes

3

Waltham and its ZIP codes

Full map

Waltham at a glance

  • Waltham is about 5.6 times as dense as Massachusetts as a whole.
  • By population, it ranks 17th among 248 cities and towns in Massachusetts.
  • The median household income is $120,216, 16% above the Massachusetts median of $103,960.
  • A typical owner-occupied home is valued at $748,700 (33% above Massachusetts) and median rent is $2,268 a month.

Local data for Waltham, MA

Counts from official public data

Housing and community stats

Waltham, MA, American Community Survey 2020-2024

Full profile

Median household income

$120,216

Poverty rate

9.4%

Median home value

$748,700

Median rent

$2,268/mo

Homeownership

49.7%

Bachelor's or higher

57.3%

Median age

34.4

Average commute

24.7 min

Largest reported origins and ancestries: Irish Americans (10,266), Italian Americans (7,713), Guatemalan Americans (3,911).

Home values and rentsIncome, education and commute

Economy and federal money

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

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

$371M

2,494 loans, 31,671 jobs reported

Middlesex County economyFederal spendingPPP loans

How people get to work

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

  • Drove alone53.0%
  • Carpooled9.5%
  • Public transit4.5%
  • Walked6.2%
  • Bicycle0.8%
  • Taxi, ride-hailing, motorcycle or other1.8%
  • Worked from home24.2%

Average one-way commute: 24.7 minutes for people who do not work from home.

Environment and hazard risk

Waltham, 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° / 18°F

42.6 inches of rain a year

Hazards, floods and storm historyCheck a flood zone95 historic places

Health statistics

Share of adults in Waltham, MA, CDC PLACES estimates

All 40 measures

Obesity

24.0%

U.S. 33.3% -9.3 pts

Diabetes

7.5%

U.S. 12.1% -4.6 pts

Smoking

9.2%

U.S. 12.8% -3.6 pts

Uninsured (18-64)

5.1%

U.S. 11.1% -6.0 pts

ZIP codes in Waltham

3 in or overlapping Waltham. Population shown

·

Cities near Waltham

NameDistanceLand area (sq mi)
BelmontCensus-designated place2.8 mi4.6
WatertownCity3.1 mi4
ArlingtonCensus-designated place3.7 mi5.1
LexingtonCensus-designated place4 mi16.4
NewtonCity4.6 mi17.8
CambridgeCity5.2 mi6.4
Hanscom AFBCensus-designated place5.4 mi0.9
WinchesterCensus-designated place6.2 mi6
MedfordCity6.3 mi8.1
BrooklineCensus-designated place6.4 mi6.8
SomervilleCity6.7 mi4.1
WellesleyCensus-designated place6.9 mi10
NeedhamCensus-designated place7.2 mi12.3
CochituateCensus-designated place7.5 mi3.8
BurlingtonCensus-designated place8.2 mi11.8
WoburnCity8.3 mi12.7

Frequently asked questions

What county is Waltham, MA in?
Waltham is in Middlesex County, Massachusetts.
What ZIP codes are in Waltham, MA?
ZIP codes in or overlapping Waltham include 02451, 02452, 02453.
What is the population of Waltham, MA?
About 64,902 people live in Waltham, based on American Community Survey 5-year estimates.
What cities are near Waltham?
Nearby places include Belmont (2.8 mi), Watertown (3.1 mi), Arlington (3.7 mi), Lexington (4 mi), Newton (4.6 mi).

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