Home / Massachusetts ZIP Codes / ZIP Code 02638

ZIP code 02638 belongs to Dennis, Massachusetts, in Barnstable. If you are mailing a letter or package to this area, use Dennis, MA 02638 in the address. On this page you will find the city and county for 02638, nearby ZIP codes in the same county, and free tools to look up any address in this ZIP code.

What City Is ZIP Code 02638?

The city for ZIP code 02638 is Dennis, Massachusetts. When you write an address in this area, the correct format is: Name, Street Address, Dennis, MA 02638.

ZIP Code 02638 County and State

ZIP code 02638 is located in Barnstable, Massachusetts. For a complete list of cities and ZIP codes across the state, see the Massachusetts ZIP Codes page.

Nearby ZIP Codes in Barnstable

These ZIP codes are in the same county as 02638:

ZIP Code 02638 on the Map

The map below shows the approximate center of ZIP code 02638, near Dennis, Massachusetts. You can zoom in and drag the map to explore the area.

Map center is approximate (ZIP area center, around 41.7322, -70.1911). Map data © OpenStreetMap.

Population and Demographics of ZIP Code 02638

According to public U.S. Census Bureau data, ZIP code 02638 is home to a community in Massachusetts. The figures below come from the U.S. Census and the American Community Survey (ACS).

Source: U.S. Census Bureau, American Community Survey (ACS) 2023 5-year estimates and 2023 Gazetteer. Figures are estimates and change with each new survey.

Find an Address in ZIP Code 02638

Need the full ZIP+4 code for a specific street address in Dennis? Use the free ZIP+4 Lookup tool, or find any ZIP code from a street address with the ZIP Code by Address tool.

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