Massachusetts Zip Codes

Massachusetts has a total of 536 ZIP codes, reflecting its compact geography and population density across urban, suburban, and rural areas. All ZIP codes in Massachusetts begin with the digits 01 or 02, which are exclusive to the state. The range starts at 01001 in Agawam and extends to 02791 in Westport.

The 01 series covers the western and central parts of the state, including cities such as Springfield, Amherst, and Worcester. The 02 series is assigned to eastern Massachusetts, including the Greater Boston area, Cambridge, and Quincy. Additionally, Cape Cod and the islands, including Martha’s Vineyard and Nantucket, also fall within this range, reflecting the state’s coastal geography.

Massachusetts’ ZIP codes are essential for organizing mail delivery in a state with densely populated metropolitan areas and quieter rural regions. They also support administrative functions such as school districting, municipal boundaries, and voting precincts. Furthermore, these ZIP codes are critical for business logistics, real estate, and demographic analysis.

In the table below, you can see all Massachusetts zip codes listed by city, town and village as well as county affiliated. With 512 cities (and towns) and 14 counties (and county-equivalents), Massachusetts is the 15th largest state by population (6,811,779)  and 45th largest one by land area (20,202 km²) in the United States.

The capital of Massachusetts is Boston and major cities include Worcester, Springfield, Lowell, and Cambridge.

List of Massachusetts Zip Codes by City