Grantham ZIP Codes

List of Zip Codes of Grantham

The following table lists ZIP Codes associated with Grantham, New Hampshire, based on ZIP Code Tabulation Area (ZCTA) data from the U.S. Census Bureau.

About Grantham New Hampshire Zip Codes

The city of Grantham in New Hampshire (NH) is served by approximately 1 ZIP Codes. These codes cover residential neighborhoods, business districts, and surrounding localities that use the city name in their mailing address.

Based on ZIP-level population estimates, the combined population covered by these ZIP Codes is around 3,478 people. Population density can vary significantly from one ZIP Code to another, reflecting the mix of dense urban blocks, commercial corridors, and lower-density residential areas.

The ZIP Codes associated with Grantham fall within county jurisdictions such as Sullivan. Each county manages local services, land use, and administration for the areas corresponding to its ZIP Codes.

Most ZIP codes for Grantham, New Hampshire follow the America/New_York time zone.