ZIP Code 43037

43037 is one of Ohio's ZIP codes, delivering to addresses in Martinsburg, Knox County.

City: Martinsburg
County: Knox County
State: Ohio
Prefix: 430xx

Where this code sits

43037 is part of the 430xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Martinsburg.

Martinsburg Ohio ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 43037 delivers to without sharing its boundary.

ZIP codes nearest 43037

The ZIP codes whose reference points sit closest to 43037.
ZIP code	Distance	Delivers to
ZIP code 43080	3.4 mi	Utica, OH
ZIP code 43005	4.0 mi	Bladensburg, OH
ZIP code 43071	6.0 mi	Saint Louisville, OH
ZIP code 43022	7.7 mi	Gambier, OH
ZIP code 43027	8.6 mi	Homer, OH
ZIP code 43028	10 mi	Howard, OH
ZIP code 43050	11 mi	Mount Vernon, OH
ZIP code 43843	12 mi	Walhonding, 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 43037, plotted from its record coordinates.

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

Scope ZIP code 43037. 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.