ZIP Code 03750

03750 is one of New Hampshire's ZIP codes, delivering to addresses in Etna, Grafton County.

City: Etna
County: Grafton County
State: New Hampshire
Prefix: 037xx

Where this code sits

03750 is part of the 037xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Etna.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 03750 delivers to without sharing its boundary.

603 Area code 603

ZIP codes nearest 03750

The ZIP codes whose reference points sit closest to 03750.
ZIP code	Distance	Delivers to
ZIP code 03755	3.7 mi	Hanover, NH
ZIP code 03766	4.8 mi	Lebanon, NH
ZIP code 05055	4.9 mi	Norwich, VT
ZIP code 03756	5.2 mi	Lebanon, NH
ZIP code 05088	5.6 mi	Wilder, VT
ZIP code 03768	6.1 mi	Lyme, NH
ZIP code 03784	6.4 mi	West Lebanon, NH
ZIP code 05043	6.6 mi	East Thetford, VT

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 03750, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 03750. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.