U.S. postal lookup

U.S. ZIP Codes Database 2026

Search by ZIP code, city, county, or state and find clear postal details with maps, time zones, and area code data.

42,735 verified records
All states and U.S. territories
Maps and coordinates
State directory

Massachusetts ZIP Codes

Complete postal directory, details, and geographic map for the State of Massachusetts.

State ZIP Code City County Area Codes
MA 02184 Braintree Norfolk County 339, 617, 781, 857
MA 02185 Braintree Norfolk County 339
MA 02186 Milton Norfolk County 339, 617, 781, 857
MA 02187 Milton Village Norfolk County 617
MA 02188 Weymouth Norfolk County 339, 781
MA 02189 East Weymouth Norfolk County 339, 781
MA 02190 South Weymouth Norfolk County 339, 781
MA 02191 North Weymouth Norfolk County 339, 617, 781, 857
MA 02196 Boston Suffolk County 617
MA 02199 Boston Suffolk County 617, 857
Page 48 of 71

Geographic Map of Massachusetts

Postal context

About U.S. ZIP Codes

ZIP codes are a United States Postal Service system introduced in 1963 to make mail routing more accurate and efficient. The standard format uses five digits, while ZIP+4 adds four more digits for a more precise delivery segment.

ZIP codes cover the United States, its territories, military mail routes, and other USPS delivery points. This directory organizes that data for practical lookup by ZIP code, city, county, and state.