ZIP Code 43101

43101 is one of Ohio's ZIP codes, delivering to addresses in Adelphi, Ross County.

City: Adelphi
County: Ross County
State: Ohio
Prefix: 431xx

Where this code sits

43101 is part of the 431xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Adelphi.

Adelphi Ohio ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 43101 delivers to without sharing its boundary.

ZIP codes nearest 43101

The ZIP codes whose reference points sit closest to 43101.
ZIP code	Distance	Delivers to
ZIP code 45633	0.1 mi	Hallsville, OH
ZIP code 43135	1.5 mi	Laurelville, OH
ZIP code 45644	5.7 mi	Kingston, OH
ZIP code 43156	6.2 mi	Tarlton, OH
ZIP code 43152	8.9 mi	South Bloomingville, OH
ZIP code 43154	10 mi	Stoutsville, OH
ZIP code 43102	11 mi	Amanda, OH
ZIP code 43149	11 mi	Rockbridge, 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 43101, plotted from its record coordinates.

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

Scope ZIP code 43101. 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.