ZIP Code 03781
Plainfield · Sullivan, New Hampshire
03781 is the ZIP code of Plainfield in Sullivan, New Hampshire, United States.
- ZIP Code
- 03781
- County
- Sullivan
- State
- New Hampshire
- Country
- United States
Place with ZIP code 03781
| Place | County | Location |
|---|---|---|
| Plainfield | Sullivan | 43.552, -72.270 |
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 03781?
Plainfield.
Which county and state is 03781 in?
Sullivan, New Hampshire, United States.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.