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Cambridge, MA
City in Middlesex County, Massachusetts. ZIP codes: 02138, 02139, 02140, 02141, 02142.
Population
118,796
Land area
6.4sq mi
People per sq mi
18,571
ZIP codes
5
Cambridge and its ZIP codes
Cambridge at a glance
- Cambridge is about 21 times as dense as Massachusetts as a whole.
- It is the 4th most populous of 248 cities and towns in Massachusetts.
- Households here earn a median of $130,748 a year, 26% more than the Massachusetts figure of $103,960.
- A typical owner-occupied home is valued at $1,092,100 (94% above Massachusetts) and median rent is $2,787 a month.
Local data for Cambridge, MA
Counts from official public data
Housing and community stats
Cambridge, MA, American Community Survey 2020-2024
Median household income
$130,748
Poverty rate
12.8%
Median home value
$1,092,100
Median rent
$2,787/mo
Homeownership
33.5%
Bachelor's or higher
80.8%
Median age
30.4
Average commute
25.8 min
Largest reported origins and ancestries: Irish Americans (12,751), Chinese Americans (9,991), German Americans (9,869).
Economy and federal money
Jobs, pay, income and spending are for Middlesex County. PPP loans are for Cambridge.
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
$442M
4,001 loans, 41,457 jobs reported
How people get to work
Cambridge, MA, workers 16 and older. American Community Survey 5-year estimates
- Drove alone19.7%
- Carpooled2.5%
- Public transit18.0%
- Walked19.2%
- Bicycle7.8%
- Taxi, ride-hailing, motorcycle or other2.0%
- Worked from home30.8%
Average one-way commute: 25.8 minutes for people who do not work from home.
Environment and hazard risk
Cambridge, MA, from FEMA, NOAA and EPA
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 zone173 historic places
Health statistics
Share of adults in Cambridge, MA, CDC PLACES estimates
Obesity
21.9%
U.S. 33.3% -11.4 pts
Diabetes
5.9%
U.S. 12.1% -6.2 pts
Smoking
7.1%
U.S. 12.8% -5.7 pts
Uninsured (18-64)
3.8%
U.S. 11.1% -7.3 pts
ZIP codes in Cambridge
5 in or overlapping Cambridge. Population shown
Cities near Cambridge
| Name | Distance | Land area (sq mi) |
|---|---|---|
| SomervilleCity | 2 mi | 4.1 |
| WatertownCity | 2.3 mi | 4 |
| BelmontCensus-designated place | 2.6 mi | 4.6 |
| MedfordCity | 3.3 mi | 8.1 |
| ArlingtonCensus-designated place | 3.3 mi | 5.1 |
| BrooklineCensus-designated place | 3.9 mi | 6.8 |
| EverettCity | 4.3 mi | 3.4 |
| MaldenCity | 5.1 mi | 5 |
| WalthamCity | 5.2 mi | 12.7 |
| BostonCity | 5.2 mi | 48.3 |
| WinchesterCensus-designated place | 5.3 mi | 6 |
| NewtonCity | 5.3 mi | 17.8 |
| ChelseaCity | 5.5 mi | 2.2 |
| MelroseCity | 6.5 mi | 4.7 |
| StonehamCensus-designated place | 6.7 mi | 6 |
| LexingtonCensus-designated place | 6.8 mi | 16.4 |
Frequently asked questions
- What county is Cambridge, MA in?
- Cambridge is in Middlesex County, Massachusetts.
- What ZIP codes are in Cambridge, MA?
- ZIP codes in or overlapping Cambridge include 02138, 02139, 02140, 02141, 02142.
- What is the population of Cambridge, MA?
- About 118,796 people live in Cambridge, based on American Community Survey 5-year estimates.
- What cities are near Cambridge?
- Nearby places include Somerville (2 mi), Watertown (2.3 mi), Belmont (2.6 mi), Medford (3.3 mi), Arlington (3.3 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023