Grafton County, New Hampshire has 40 ZIP codes in this list, from 03215 to 03785. They cover 39 places, among them Lebanon, Waterville Valley, Ashland and Bristol.
The ZIP code areas of Grafton County add up to about 1,731 square miles of land (4,483 sq km) as the Census Bureau draws them. The largest is 03215 (Waterville Valley), with 192 square miles.
Places with more than one code here: Lebanon (2 codes).
Using these codes
In an address, the ZIP code comes last, after the city and the two-letter state: Waterville Valley, NH 03215.
Tap a ZIP code to open it in the look-up, with a copy button for the address line.
A code can cross a county line, and one town can have several codes. The table shows the main place of each code.
"No area" means the Census Bureau draws no area for that code. Such codes are usually for post office boxes or a single building.
Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.
ZIP Codes