ZIP Code 45817

45817 is one of Ohio's ZIP codes, delivering to addresses in Bluffton, Allen County.

City: Bluffton
County: Allen County
State: Ohio
Prefix: 458xx

Where this code sits

45817 is part of the 458xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Bluffton.

Bluffton Ohio ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 45817 delivers to without sharing its boundary.

ZIP codes nearest 45817

The ZIP codes whose reference points sit closest to 45817.
ZIP code	Distance	Delivers to
ZIP code 45808	5.5 mi	Beaverdam, OH
ZIP code 45877	5.9 mi	Pandora, OH
ZIP code 45868	6.2 mi	Mount Cory, OH
ZIP code 45881	7.9 mi	Rawson, OH
ZIP code 45810	8.5 mi	Ada, OH
ZIP code 45841	8.8 mi	Jenera, OH
ZIP code 45854	8.9 mi	Lafayette, OH
ZIP code 45830	9.7 mi	Columbus Grove, 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 45817, plotted from its record coordinates.

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

Scope ZIP code 45817. 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.