ZIP Code 45056

45056 is one of Ohio's ZIP codes, delivering to addresses in Oxford, Butler County.

City: Oxford
County: Butler County
State: Ohio
Prefix: 450xx

Where this code sits

45056 is part of the 450xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Oxford.

Oxford Ohio ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 45056 delivers to without sharing its boundary.

ZIP codes nearest 45056

The ZIP codes whose reference points sit closest to 45056.
ZIP code	Distance	Delivers to
ZIP code 47010	4.9 mi	Bath, IN
ZIP code 47003	5.6 mi	West College Corner, IN
ZIP code 45003	5.7 mi	College Corner, OH
ZIP code 45004	7.3 mi	Collinsville, OH
ZIP code 45064	7.4 mi	Somerville, OH
ZIP code 45013	8.3 mi	Hamilton, OH
ZIP code 45012	10 mi	Hamilton, OH
ZIP code 45018	10 mi	Fairfield, 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 45056, plotted from its record coordinates.

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

Scope ZIP code 45056. 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.