ZIP Code 45343

45343 is one of Ohio's ZIP codes, delivering to addresses in Miamisburg, Montgomery County.

City: Miamisburg
County: Montgomery County
State: Ohio
Prefix: 453xx

Where this code sits

45343 is part of the 453xx range, the group of codes handled by one mail processing centre. Miamisburg is served by 2 ZIP codes in total; the full list, with the county each falls in, is on the Miamisburg page.

Miamisburg Ohio ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 45343 delivers to without sharing its boundary.

ZIP codes nearest 45343

The ZIP codes whose reference points sit closest to 45343.
ZIP code	Distance	Delivers to
ZIP code 45401	0.0 mi	Dayton, OH
ZIP code 45413	0.0 mi	Dayton, OH
ZIP code 45435	0.0 mi	Dayton, OH
ZIP code 45437	0.0 mi	Dayton, OH
ZIP code 45441	0.0 mi	Dayton, OH
ZIP code 45448	0.0 mi	Dayton, OH
ZIP code 45470	0.0 mi	Dayton, OH
ZIP code 45475	0.0 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 45343, plotted from its record coordinates.

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

Scope ZIP code 45343. 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.