ZIP Code 45612

45612 is one of Ohio's ZIP codes, delivering to addresses in Bainbridge, Ross County.

City: Bainbridge
County: Ross County
State: Ohio
Prefix: 456xx

Where this code sits

45612 is part of the 456xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Bainbridge.

Bainbridge Ohio ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 45612 delivers to without sharing its boundary.

ZIP codes nearest 45612

The ZIP codes whose reference points sit closest to 45612.
ZIP code	Distance	Delivers to
ZIP code 45624	4.7 mi	Cynthiana, OH
ZIP code 45681	6.2 mi	South Salem, OH
ZIP code 45617	7.8 mi	Bourneville, OH
ZIP code 45646	9.6 mi	Latham, OH
ZIP code 45123	11 mi	Greenfield, OH
ZIP code 45172	11 mi	Sinking Spring, OH
ZIP code 45628	13 mi	Frankfort, OH
ZIP code 45661	14 mi	Piketon, 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 45612, plotted from its record coordinates.

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

Scope ZIP code 45612. 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.