Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/MA/CAMBRIDGE

Cambridge ZIP codes, Massachusetts

Cambridge, MA has 6 ZIP codes (02139, 02138, 02140, 02141, 02142 and 02238) and area codes 617 and 857. The largest is 02139.

USPS city name
6 ZIP codes
Overlapping the city
1 more
Population
118,796
Area codes
617, 857

Mail addressed to Cambridge uses the ZIP codes above. 1 more ZIP code covers part of the city but is addressed as somewhere else; they are listed separately below.

Cambridge in numbers

About 118,796 people live in Cambridge, in 49,444 households, the 4th-largest of Massachusetts's 248 census places. The median household income is $130,748 a year, 26% above the Massachusetts median of $103,960 (US: $80,734). The median owner-occupied home is valued at $1,092,100 (94% above the Massachusetts median), and median gross rent is $2,787 a month. The median age is 30.4; 80.8% of adults 25 and over hold a bachelor's degree or higher (47.3% across Massachusetts); the average commute takes 26 minutes.

Population118,796Cambridge118,796
Households49,444Cambridge49,444
Median age30.4Cambridge30.4Massachusetts40.0US 38.9
Median household income$130,748Cambridge$130,748Massachusetts$103,960US $80,734
Median home value$1,092,100Cambridge$1,092,100Massachusetts$562,100US $332,700
Median gross rent$2,787Cambridge$2,787Massachusetts$1,762US $1,413
Bachelor's degree or higher80.8%Cambridge80.8%Massachusetts47.3%US 35.7%
Mean commute25.8 minCambridge25.8 minMassachusetts29.1 minUS 26.4 min
Population density18,571 / sq miCambridge18,571 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Cambridge city. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Cambridge

ZIP codes with the USPS city name Cambridge
ZIP City Type Population Median income Median home
02139 Cambridge , MA Standard 40,033 $134,586 $1,087,500
02138 Cambridge , MA Standard 38,509 $119,967 $1,212,400
02140 Cambridge , MA Standard 21,204 $135,286 $1,149,800
02141 Cambridge , MA Standard 14,517 $126,522 $868,100
02142 Cambridge , MA Standard 4,737 $147,723 $1,954,500
02238 Cambridge , MA No street area — — —

Other ZIP codes overlapping Cambridge

These ZIP codes cover part of Cambridge but are addressed as somewhere else.

ZIP codes overlapping Cambridge
ZIP City Type Population Median income Median home
02472 Watertown , MA Standard 35,620 $126,336 $784,600

Map of Cambridge ZIP codes

021390213802140021410214202238

The ZIP codes of Cambridge, MA, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Cambridge

The nearest larger towns are Boston (666,442 people, 5.7 mi), Worcester (207,055 people, 36 mi) and Providence, RI (191,767 people, 41 mi).

Towns near Cambridge
TownPopulationDistance
Somerville 81,036 1.3 mi
Watertown 35,543 3.1 mi
Medford 59,354 3.3 mi
Belmont 27,175 3.4 mi
Arlington 46,350 3.7 mi
Brookline 63,266 3.8 mi
Everett 50,045 3.9 mi
Chelsea 39,908 4.7 mi
Malden 65,906 4.8 mi
Winchester 23,406 5.5 mi
Newton 89,044 5.5 mi
Boston 666,442 5.7 mi
Melrose 29,650 6.3 mi
Waltham 64,902 6.4 mi

More nearby: every ZIP code in Middlesex County · Massachusetts ZIP codes

Cite this page

zipcodes.pro. “Cambridge, MA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ma/cambridge

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