Find the last 4 digits (ZIP+4) for an address in 02138

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ZIP Code 02138 – Cambridge, MA

Cambridge, Massachusetts · Middlesex County · Eastern time

ZIP code02138
CityCambridge
StateMassachusetts
CountyMiddlesex County
Population38,509
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area2.74 sq mi
Center (lat, long)42.3796, -71.1352

Area codes in this area

781339

These are the area codes that most often serve ZIP 02138 (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

02140 Cambridge · 0.9 mi02163 Boston · 1 mi02134 Allston · 1.5 mi02238 Cambridge · 1.5 mi02144 Somerville · 1.5 mi02143 Somerville · 2 mi02139 Cambridge · 2.1 mi02135 Brighton · 2.3 mi

About ZIP 02138

ZIP code 02138 is assigned to Cambridge, Massachusetts. It lies in Middlesex County. Its Census area covers about 2.74 square miles of land. The closest neighboring ZIP is 02140 (Cambridge), about 0.9 miles away.

Every address in 02138 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