ZIP Code 45346

45346 is one of Ohio's ZIP codes, delivering to addresses in New Madison, Darke County.

City: New Madison
County: Darke County
State: Ohio
Prefix: 453xx

Where this code sits

45346 is part of the 453xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to New Madison.

New Madison Ohio ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 45346 delivers to without sharing its boundary.

ZIP codes nearest 45346

The ZIP codes whose reference points sit closest to 45346.
ZIP code	Distance	Delivers to
ZIP code 45332	3.9 mi	Hollansburg, OH
ZIP code 45352	5.8 mi	Palestine, OH
ZIP code 45321	6.0 mi	Eldorado, OH
ZIP code 45382	7.1 mi	West Manchester, OH
ZIP code 45347	8.0 mi	New Paris, OH
ZIP code 47341	9.9 mi	Fountain City, IN
ZIP code 45331	10 mi	Greenville, OH
ZIP code 45304	10 mi	Arcanum, 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 45346, plotted from its record coordinates.

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

Scope ZIP code 45346. 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.