ZIP Code 42726

42726 is one of Kentucky's ZIP codes, delivering to addresses in Clarkson, Grayson County.

City: Clarkson
County: Grayson County
State: Kentucky
Prefix: 427xx

Where this code sits

42726 is part of the 427xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Clarkson.

Clarkson Kentucky ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 42726 delivers to without sharing its boundary.

ZIP codes nearest 42726

The ZIP codes whose reference points sit closest to 42726.
ZIP code	Distance	Delivers to
ZIP code 42755	5.7 mi	Leitchfield, KY
ZIP code 42754	6.7 mi	Leitchfield, KY
ZIP code 42712	7.5 mi	Big Clifty, KY
ZIP code 42207	10 mi	Bee Spring, KY
ZIP code 42762	11 mi	Millwood, KY
ZIP code 42729	11 mi	Cub Run, KY
ZIP code 42259	11 mi	Mammoth Cave, KY
ZIP code 42788	12 mi	White Mills, KY

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 42726, plotted from its record coordinates.

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

Scope ZIP code 42726. 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.