ZIP Code 45624

45624 is one of Ohio's ZIP codes, delivering to addresses in Cynthiana, Pike County.

City: Cynthiana
County: Pike County
State: Ohio
Prefix: 456xx

Where this code sits

45624 is part of the 456xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Cynthiana.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 45624 delivers to without sharing its boundary.

ZIP codes nearest 45624

The ZIP codes whose reference points sit closest to 45624.
ZIP code	Distance	Delivers to
ZIP code 45612	4.7 mi	Bainbridge, OH
ZIP code 45646	6.5 mi	Latham, OH
ZIP code 45172	7.2 mi	Sinking Spring, OH
ZIP code 45681	9.8 mi	South Salem, OH
ZIP code 45123	12 mi	Greenfield, OH
ZIP code 45617	13 mi	Bourneville, OH
ZIP code 45660	13 mi	Peebles, OH
ZIP code 45133	14 mi	Hillsboro, 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 45624, plotted from its record coordinates.

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

Scope ZIP code 45624. 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.