ZIP Code 45601

45601 is one of Ohio's ZIP codes, delivering to addresses in Chillicothe, Ross County.

City: Chillicothe
County: Ross County
State: Ohio
Prefix: 456xx

Where this code sits

45601 is part of the 456xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Chillicothe.

Chillicothe Ohio ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 45601 delivers to without sharing its boundary.

ZIP codes nearest 45601

The ZIP codes whose reference points sit closest to 45601.
ZIP code	Distance	Delivers to
ZIP code 45617	9.9 mi	Bourneville, OH
ZIP code 45644	10 mi	Kingston, OH
ZIP code 45647	12 mi	Londonderry, OH
ZIP code 45628	12 mi	Frankfort, OH
ZIP code 45673	13 mi	Richmond Dale, OH
ZIP code 43115	14 mi	Clarksburg, OH
ZIP code 45690	15 mi	Waverly, OH
ZIP code 45681	15 mi	South Salem, 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 45601, plotted from its record coordinates.

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

Scope ZIP code 45601. 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.