ZIP Code 03603 – Charlestown, New Hampshire | ZipsCode.us
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ZIP Code 03603
Charlestown, New Hampshire · Sullivan
ZIP code 03603 belongs to the city of Charlestown in New Hampshire (Sullivan). See all New Hampshire ZIP Codes.
ZIP code 03603 belongs to Charlestown, New Hampshire, in Sullivan. If you are mailing a letter or package to this area, use Charlestown, NH 03603 in the address. On this page you will find the city and county for 03603, nearby ZIP codes in the same county, and free tools to look up any address in this ZIP code.
What City Is ZIP Code 03603?
The city for ZIP code 03603 is Charlestown, New Hampshire. When you write an address in this area, the correct format is: Name, Street Address, Charlestown, NH 03603.
ZIP Code 03603 County and State
ZIP code 03603 is located in Sullivan, 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 Sullivan
These ZIP codes are in the same county as 03603:
ZIP Code 03603 on the Map
The map below shows the approximate center of ZIP code 03603, near Charlestown, New Hampshire. You can zoom in and drag the map to explore the area.
Map center is approximate (ZIP area center, around 43.2573, -72.4064). Map data © OpenStreetMap.
Population and Demographics of ZIP Code 03603
According to public U.S. Census Bureau data, ZIP code 03603 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 03603
Need the full ZIP+4 code for a specific street address in Charlestown? Use the free ZIP+4 Lookup tool, or find any ZIP code from a street address with the ZIP Code by Address tool.
Frequently Asked Questions
What city is ZIP code 03603?
ZIP code 03603 is for Charlestown, New Hampshire.
What county is ZIP code 03603 in?
ZIP code 03603 is in Sullivan, New Hampshire.
What state is ZIP code 03603 in?
ZIP code 03603 is in New Hampshire (NH).
How do I find the ZIP+4 for an address in 03603?
Use the free ZIP+4 Lookup tool with the full street address to get the complete 9-digit ZIP code.
What are the nearby ZIP codes to 03603?
Nearby ZIP codes include 03280 (Washington), 03284 (Springfield), 03601 (Acworth), 03605 (Lempster), 03607 (South Acworth).
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