ZIP Code 43724

43724 is one of Ohio's ZIP codes, delivering to addresses in Caldwell, Noble County.

City: Caldwell
County: Noble County
State: Ohio
Prefix: 437xx

Where this code sits

43724 is part of the 437xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Caldwell.

Caldwell Ohio ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 43724 delivers to without sharing its boundary.

ZIP codes nearest 43724

The ZIP codes whose reference points sit closest to 43724.
ZIP code	Distance	Delivers to
ZIP code 43717	3.7 mi	Belle Valley, OH
ZIP code 43711	6.7 mi	Ava, OH
ZIP code 43779	6.8 mi	Sarahsville, OH
ZIP code 45727	7.0 mi	Dexter City, OH
ZIP code 45746	9.5 mi	Macksburg, OH
ZIP code 43732	11 mi	Cumberland, OH
ZIP code 43788	11 mi	Summerfield, OH
ZIP code 43772	12 mi	Pleasant City, OH

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 43724, plotted from its record coordinates.

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

Scope ZIP code 43724. 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.