Plainfield, NH ZIP code
The ZIP code for Plainfield, New Hampshire is 03781. It is in Sullivan County.
- Population in these ZIPs
- 1,918
- Avg. median income
- $109,700population-weighted
- Typical home value
- $524,200population-weighted
- Metro area
- Lebanon-Claremont, NH-VT
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Plainfield, NH ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 03781 | 1,918 | $109,659 | $524,200 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Plainfield
- Meriden 3 mi
- West Lebanon 5 mi
- Lebanon 6 mi
- Cornish 6 mi
- Grantham 8 mi
- Enfield 10 mi
- Etna 12 mi
- Georges Mills 14 mi
- Claremont 14 mi
- Newport 14 mi
- Hanover 14 mi
- Springfield 16 mi
Frequently asked questions
What is the ZIP code for Plainfield, NH?
The ZIP code for Plainfield, NH is 03781.
What county is Plainfield, New Hampshire in?
Plainfield ZIP codes are in Sullivan County.