Washington ZIP Codes

List of Zip Codes of Washington

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

About Washington New Hampshire Zip Codes

The city of Washington 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 1,188 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 Washington 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 Washington, New Hampshire follow the America/New_York time zone.