Cornish Flat ZIP code, New Hampshire
The ZIP code for Cornish Flat, NH is 03746, and its area code is 603.
- USPS city name
- 1 ZIP code
- Area code
- 603
- County
- Sullivan County
- State
- New Hampshire
NANPA lists no telephone rate centre for Cornish Flat itself, so these are the area codes of the nearest one, Meriden (2.6 miles). A town on an area-code boundary can differ from its neighbour.
ZIP codes addressed as Cornish Flat
| ZIP | City | Type |
|---|---|---|
03746 | Cornish Flat , NH | No street area |
Towns near Cornish Flat
| Town | Population | Distance |
|---|---|---|
| Claremont | 13,078 | 8.1 mi |
| Lebanon | 14,999 | 9.6 mi |
| Newport | 4,758 | 10.5 mi |
| White River Junction, VT | 3,364 | 10.8 mi |
| Wilder, VT | 3,087 | 12.6 mi |
| Hanover | 8,479 | 14.8 mi |
| Springfield, VT | 4,237 | 17.2 mi |
| Bellows Falls, VT | 2,891 | 26.6 mi |
More nearby: every ZIP code in Sullivan County · New Hampshire ZIP codes
Cite this page
zipcodes.pro. “Cornish Flat, NH ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/nh/cornish-flat
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