ZIP CodesZIP codes in Sullivan County, New Hampshire
Sullivan County, New Hampshire has 17 ZIP codes in this list, from 03280 to 03782. They cover 17 places, among them Washington, Springfield, Acworth and Charlestown.
Nothing in this county matches.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 03280 | Washington | 45.2 | 43.175, -72.082 |
| 03284 | Springfield | 38.3 | 43.494, -72.047 |
| 03601 | Acworth | 15.6 | 43.196, -72.300 |
| 03603 | Charlestown | 44.3 | 43.257, -72.406 |
| 03605 | Lempster | 31.5 | 43.214, -72.197 |
| 03607 | South Acworth | 16.4 | 43.196, -72.269 |
| 03743 | Claremont | 59.1 | 43.368, -72.342 |
| 03745 | Cornish | 42.0 | 43.496, -72.339 |
| 03746 | Cornish Flat | no area | 43.497, -72.279 |
| 03751 | Georges Mills | 2.0 | 43.432, -72.067 |
| 03752 | Goshen | 22.3 | 43.303, -72.124 |
| 03753 | Grantham | 28.2 | 43.510, -72.133 |
| 03754 | Guild | no area | 43.377, -72.138 |
| 03770 | Meriden | 4.4 | 43.530, -72.276 |
| 03773 | Newport | 94.2 | 43.353, -72.184 |
| 03781 | Plainfield | 47.8 | 43.552, -72.270 |
| 03782 | Sunapee | 20.3 | 43.387, -72.095 |
The ZIP code areas of Sullivan County add up to about 512 square miles of land (1,325 sq km) as the Census Bureau draws them. The largest is 03773 (Newport), with 94.2 square miles.
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Washington, NH 03280.
- 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.