ZIP Code 42788

42788 is one of Kentucky's ZIP codes, delivering to addresses in White Mills, Hardin County.

City: White Mills
County: Hardin County
State: Kentucky
Prefix: 427xx

Where this code sits

42788 is part of the 427xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to White Mills.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 42788 delivers to without sharing its boundary.

ZIP codes nearest 42788

The ZIP codes whose reference points sit closest to 42788.
ZIP code	Distance	Delivers to
ZIP code 42732	5.1 mi	Eastview, KY
ZIP code 42712	5.6 mi	Big Clifty, KY
ZIP code 42776	6.6 mi	Sonora, KY
ZIP code 42724	8.7 mi	Cecilia, KY
ZIP code 42740	9.1 mi	Glendale, KY
ZIP code 42784	9.4 mi	Upton, KY
ZIP code 42726	12 mi	Clarkson, KY
ZIP code 40159	13 mi	Radcliff, 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 42788, plotted from its record coordinates.

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

Scope ZIP code 42788. 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.