ZIP Code 03740

03740 is one of New Hampshire's ZIP codes, delivering to addresses in Bath, Grafton County.

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

Where this code sits

03740 is part of the 037xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Bath.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 03740 delivers to without sharing its boundary.

603 Area code 603

ZIP codes nearest 03740

The ZIP codes whose reference points sit closest to 03740.
ZIP code	Distance	Delivers to
ZIP code 03785	3.3 mi	Woodsville, NH
ZIP code 05081	4.0 mi	Wells River, VT
ZIP code 03585	4.9 mi	Lisbon, NH
ZIP code 03774	6.0 mi	North Haverhill, NH
ZIP code 05069	6.4 mi	South Ryegate, VT
ZIP code 05042	6.6 mi	East Ryegate, VT
ZIP code 03771	6.7 mi	Monroe, NH
ZIP code 03586	9.6 mi	Sugar Hill, NH

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 03740, plotted from its record coordinates.

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

Scope ZIP code 03740. 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.