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ZIP Code 02139
Cambridge, MA, Middlesex County
Population
40,033
Land area
1.6sq mi
People per sq mi
25,797
City
Cambridge
ZIP 02139 and nearby ZIP codes
ZIP 02139 at a glance
- ZIP 02139 (Cambridge) is about 29 times as dense as Massachusetts as a whole.
- Households here earn a median of $134,586 a year, 29% more than the Massachusetts figure of $103,960.
- A typical owner-occupied home is valued at $1,087,500 (93% above Massachusetts) and median rent is $2,691 a month.
Local data for ZIP 02139
Counts from official public data
Housing and community stats
ZIP 02139, American Community Survey 2020-2024
Median household income
$134,586
Poverty rate
13.0%
Median home value
$1,087,500
Prices +1.5% in a year
Median rent
$2,691/mo
Homeownership
32.2%
Bachelor's or higher
79.5%
Median age
30.0
Average commute
24.4 min
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
1,118
ZIP Business Patterns 2023
Employees
57,246
$7.7B annual payroll
PPP loans
$129M
1,339 loans
Campaign donations
$1.4M
42% D, 1% R, 2026 cycle
Environment and hazard risk
ZIP 02139, 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
Health statistics
Share of adults in ZIP 02139, CDC PLACES estimates
Obesity
22.0%
U.S. 33.3% -11.3 pts
Diabetes
5.8%
U.S. 12.1% -6.3 pts
Smoking
7.3%
U.S. 12.8% -5.5 pts
Uninsured (18-64)
4.1%
U.S. 11.1% -7.0 pts
Frequently asked questions
- What city is ZIP code 02139?
- ZIP code 02139 is in Cambridge, MA (Middlesex County).
- What county is ZIP code 02139 in?
- ZIP code 02139 is mostly in Middlesex County, Massachusetts.
- How many people live in ZIP code 02139?
- About 40,033 people live in the 02139 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.
Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.