ZIP Code 45830

45830 is one of Ohio's ZIP codes, delivering to addresses in Columbus Grove, Putnam County.

City: Columbus Grove
County: Putnam County
State: Ohio
Prefix: 458xx

Where this code sits

45830 is part of the 458xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Columbus Grove.

Columbus Grove Ohio ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 45830 delivers to without sharing its boundary.

ZIP codes nearest 45830

The ZIP codes whose reference points sit closest to 45830.
ZIP code	Distance	Delivers to
ZIP code 45893	4.6 mi	Vaughnsville, OH
ZIP code 45820	5.8 mi	Cairo, OH
ZIP code 45877	6.7 mi	Pandora, OH
ZIP code 45875	7.4 mi	Ottawa, OH
ZIP code 45808	7.5 mi	Beaverdam, OH
ZIP code 45809	7.7 mi	Gomer, OH
ZIP code 45848	8.0 mi	Glandorf, OH
ZIP code 45853	8.2 mi	Kalida, 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 45830, plotted from its record coordinates.

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

Scope ZIP code 45830. 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.