ZIP Code 45723

45723 is one of Ohio's ZIP codes, delivering to addresses in Coolville, Athens County.

City: Coolville
County: Athens County
State: Ohio
Prefix: 457xx

Where this code sits

45723 is part of the 457xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Coolville.

Coolville Ohio ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 45723 delivers to without sharing its boundary.

ZIP codes nearest 45723

The ZIP codes whose reference points sit closest to 45723.
ZIP code	Distance	Delivers to
ZIP code 45783	3.2 mi	Tuppers Plains, OH
ZIP code 45739	4.9 mi	Hockingport, OH
ZIP code 45772	5.0 mi	Reedsville, OH
ZIP code 45735	5.4 mi	Guysville, OH
ZIP code 45778	8.1 mi	Stewart, OH
ZIP code 45742	8.1 mi	Little Hocking, OH
ZIP code 26181	9.4 mi	Washington, WV
ZIP code 26133	9.5 mi	Belleville, WV

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 45723, plotted from its record coordinates.

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

Scope ZIP code 45723. 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.