ZIP Code 45431

45431 is one of Ohio's ZIP codes, delivering to addresses in Dayton, Greene County.

City: Dayton
County: Greene County
State: Ohio
Prefix: 454xx

Where this code sits

45431 is part of the 454xx range, the group of codes handled by one mail processing centre. Dayton is served by 43 ZIP codes in total; the full list, with the county each falls in, is on the Dayton page.

Dayton Ohio ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 45431 delivers to without sharing its boundary.

ZIP codes nearest 45431

The ZIP codes whose reference points sit closest to 45431.
ZIP code	Distance	Delivers to
ZIP code 45432	2.0 mi	Dayton, OH
ZIP code 45434	2.9 mi	Dayton, OH
ZIP code 45301	3.6 mi	Alpha, OH
ZIP code 45324	3.9 mi	Fairborn, OH
ZIP code 45433	3.9 mi	Dayton, OH
ZIP code 45430	4.2 mi	Dayton, OH
ZIP code 45403	4.9 mi	Dayton, OH
ZIP code 45420	5.0 mi	Dayton, 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 45431, plotted from its record coordinates.

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

Scope ZIP code 45431. 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.