Home / New Hampshire ZIP Codes / ZIP Code 03240

ZIP code 03240 belongs to Grafton, New Hampshire, in Grafton. If you are mailing a letter or package to this area, use Grafton, NH 03240 in the address. On this page you will find the city and county for 03240, nearby ZIP codes in the same county, and free tools to look up any address in this ZIP code.

What City Is ZIP Code 03240?

The city for ZIP code 03240 is Grafton, New Hampshire. When you write an address in this area, the correct format is: Name, Street Address, Grafton, NH 03240.

ZIP Code 03240 County and State

ZIP code 03240 is located in Grafton, New Hampshire. For a complete list of cities and ZIP codes across the state, see the New Hampshire ZIP Codes page.

Nearby ZIP Codes in Grafton

These ZIP codes are in the same county as 03240:

ZIP Code 03240 on the Map

The map below shows the approximate center of ZIP code 03240, near Grafton, New Hampshire. You can zoom in and drag the map to explore the area.

Map center is approximate (ZIP area center, around 43.5727, -71.9634). Map data © OpenStreetMap.

Population and Demographics of ZIP Code 03240

According to public U.S. Census Bureau data, ZIP code 03240 is home to a community in New Hampshire. 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 03240

Need the full ZIP+4 code for a specific street address in Grafton? 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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