ZIP Code 42742

42742 is one of Kentucky's ZIP codes, delivering to addresses in Gradyville, Adair County.

City: Gradyville
County: Adair County
State: Kentucky
Prefix: 427xx

Where this code sits

42742 is part of the 427xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Gradyville.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 42742 delivers to without sharing its boundary.

ZIP codes nearest 42742

The ZIP codes whose reference points sit closest to 42742.
ZIP code	Distance	Delivers to
ZIP code 42715	10 mi	Breeding, KY
ZIP code 42720	10 mi	Cane Valley, KY
ZIP code 42129	10 mi	Edmonton, KY
ZIP code 42743	11 mi	Greensburg, KY
ZIP code 42728	11 mi	Columbia, KY
ZIP code 42154	13 mi	Knob Lick, KY
ZIP code 42741	13 mi	Glens Fork, KY
ZIP code 42214	13 mi	Center, 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 42742, plotted from its record coordinates.

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

Scope ZIP code 42742. 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.