ZIP Code 03743

03743 is one of New Hampshire's ZIP codes, delivering to addresses in Claremont, Sullivan County.

City: Claremont
County: Sullivan County
State: New Hampshire
Prefix: 037xx

Where this code sits

03743 is part of the 037xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Claremont.

Claremont New Hampshire ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 03743 delivers to without sharing its boundary.

603 Area code 603

ZIP codes nearest 03743

The ZIP codes whose reference points sit closest to 03743.
ZIP code	Distance	Delivers to
ZIP code 05030	5.3 mi	Ascutney, VT
ZIP code 03773	8.0 mi	Newport, NH
ZIP code 05156	8.1 mi	Springfield, VT
ZIP code 05089	8.2 mi	Windsor, VT
ZIP code 05151	8.2 mi	Perkinsville, VT
ZIP code 03603	8.3 mi	Charlestown, NH
ZIP code 03745	8.9 mi	Cornish, NH
ZIP code 03746	9.5 mi	Cornish Flat, 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 03743, plotted from its record coordinates.

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

Scope ZIP code 03743. 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.