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ZIP code 02140: Cambridge, MA

02140 is a ZIP code in Cambridge, Massachusetts, mainly in Middlesex County, part of the Boston-Cambridge-Newton, MA-NH metro area. About 21,204 people live here.

Population
21,204
Median household income
$135,286
Typical home value
$1,066,200+1.2% in 12 months
Median rent
$2,615gross, per month
Median age
33.9
Homeowners
34.9%of occupied homes
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Shaded: ZIP code 02140's area. Click anywhere on the map to see which ZIP code it's in.

ZIP codes within 10 milesWithin 25 miles

ZIP code 02140 details

CityCambridge
StateMassachusetts
CountyMiddlesex County
Metro areaBoston-Cambridge-Newton, MA-NH
Time zoneEastern Time (UTC−5), observes daylight saving time
TypeStandard (delivery area)
Land area1.2 sq mi, plus 0 sq mi of water
Population density18,279 people per sq mi
Bachelor's degree or higher79.1% of adults 25+
Average commute31.9 minutes
Center coordinates42.39216, -71.13400

Median rent in 02140 by bedrooms

SizeMedian gross rent
Studio$2,456/mo
1 bedroom$2,450/mo
2 bedrooms$2,727/mo
3 bedrooms$3,471/mo
4 bedrooms$3,000/mo
5+ bedrooms$2,346/mo

Gross rent includes utilities paid by the tenant. ACS 2020–2024; sizes with too few rentals to estimate are left out.

ZIP codes near 02140

ZIP codeCityDistancePopulation
02144Somerville, MA0.8 mi25,448
02138Cambridge, MA0.9 mi38,509
02163Boston, MA1.8 mi1,817
02238Cambridge, MA1.9 mi—
02143Somerville, MA2.0 mi25,513
02156West Medford, MA2.1 mi—
02145Somerville, MA2.3 mi27,495
02474Arlington, MA2.3 mi28,642

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

Buying a home in 02140?

A typical home in ZIP code 02140 is worth about $1,066,200 (Zillow Home Value Index). The median household here earns $135,286 a year. See what buying here would cost per month, with Massachusetts average taxes and insurance filled in.

Monthly payment for a $1,066,200 homeWhat can a $135,286 income afford?Rental property numbers

About ZIP code 02140

What city is ZIP code 02140?

ZIP code 02140 is in Cambridge, MA, in Middlesex County.

What county is ZIP code 02140 in?

02140 is mainly in Middlesex County, Massachusetts.

What is the population of ZIP code 02140?

About 21,204 people live in ZIP code 02140, according to the American Community Survey 2020–2024 5-year estimates.

What time zone is ZIP code 02140 in?

02140 is in Eastern Time (UTC−5). It observes daylight saving time.

What other ZIP codes does Cambridge have?

Cambridge, MA also uses 02138, 02139, 02141, 02142 and 02238.