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Zip Code 02140 — Cambridge, MA

02140 is a ZIP Code associated with Cambridge, MA, located within Middlesex. The postal region supports an estimated population of 21,204 residents across Data Pending housing units, with a population density of 7,067.6 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (42.393320, -71.133420)

Data Metric	Local Statistic
Postal / Zip Code	02140
Primary City	Cambridge
State / Province	MA
County	Middlesex
Total Population	21,204
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	7,067.6 people/sq mi
Timezone	America/New_York

How 02140 Compares

Metric	ZIP 02140	Middlesex County	MA State Average
Population	21,204	1,629,277	7,043,978
Median Income	Data Pending	N/A	N/A
Population Density	7,067.6 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 02144	Somerville	0.8 mi	25,448	N/A
Zip 02138	Cambridge	0.9 mi	38,509	N/A
Zip 02163	Boston	1.9 mi	1,817	N/A
Zip 02143	Somerville	2.0 mi	25,513	N/A
Zip 02474	Arlington	2.2 mi	28,642	N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →