Union ZIP code, New Hampshire
The ZIP code for Union, NH is 03887, and its area code is 603.
- USPS city name
- 1 ZIP code
- Population
- 131
- Area code
- 603
- County
- Strafford County
- State
- New Hampshire
NANPA lists no telephone rate centre for Union itself, so these are the area codes of the nearest one, Milton (3.9 miles). A town on an area-code boundary can differ from its neighbour.
ZIP codes addressed as Union
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
03887 | Union , NH | Standard | 1,739 | $91,875 | $292,800 |
Map of Union ZIP codes
The ZIP codes of Union, NH, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Towns near Union
The nearest larger towns are Sanbornville (1,317 people, 4.3 mi), Milton (356 people, 6.3 mi) and Farmington (3,924 people, 6.8 mi).
| Town | Population | Distance |
|---|---|---|
| Farmington | 3,924 | 6.8 mi |
| Wolfeboro | 2,531 | 11.8 mi |
| Rochester | 33,144 | 13.5 mi |
| Sanford, ME | 22,247 | 14.1 mi |
| Somersworth | 12,111 | 17.8 mi |
| Lake Arrowhead, ME | 3,322 | 18.4 mi |
| South Berwick, ME | 3,381 | 21.3 mi |
| Dover | 33,364 | 22.2 mi |
| Laconia | 17,085 | 23.7 mi |
| Durham | 10,681 | 24.6 mi |
| Kennebunk, ME | 6,221 | 25.1 mi |
| Meredith | 2,617 | 26.2 mi |
| South Eliot, ME | 4,203 | 27.2 mi |
| Tilton Northfield | 3,101 | 28.7 mi |
More nearby: every ZIP code in Strafford County · New Hampshire ZIP codes
Cite this page
zipcodes.pro. “Union, NH ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/nh/union
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