Find the last 4 digits (ZIP+4) for an address in 02139

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ZIP Code 02139 – Cambridge, MA

Cambridge, Massachusetts · Middlesex County · Eastern time

ZIP code02139
CityCambridge
StateMassachusetts
CountyMiddlesex County
Population40,033
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area1.55 sq mi
Center (lat, long)42.3624, -71.1023

Area codes in this area

339781617857

These are the area codes that most often serve ZIP 02139 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Map

Nearby ZIP codes

02238 Cambridge · 0.9 mi02215 Boston · 1 mi02142 Cambridge · 1.1 mi02141 Cambridge · 1.1 mi02163 Boston · 1.2 mi02143 Somerville · 1.3 mi02134 Allston · 1.4 mi02199 Boston · 1.5 mi

About ZIP 02139

ZIP code 02139 is assigned to Cambridge, Massachusetts. It lies in Middlesex County. Its Census area covers about 1.55 square miles of land. The closest neighboring ZIP is 02238 (Cambridge), about 0.9 miles away.

Every address in 02139 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources