ZIP Code 42457

42457 is one of Kentucky's ZIP codes, delivering to addresses in Smith Mills, Henderson County.

City: Smith Mills
County: Henderson County
State: Kentucky
Prefix: 424xx

Where this code sits

42457 is part of the 424xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Smith Mills.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 42457 delivers to without sharing its boundary.

ZIP codes nearest 42457

The ZIP codes whose reference points sit closest to 42457.
ZIP code	Distance	Delivers to
ZIP code 42462	6.2 mi	Waverly, KY
ZIP code 42406	7.8 mi	Corydon, KY
ZIP code 42461	8.7 mi	Uniontown, KY
ZIP code 47620	9.0 mi	Mount Vernon, IN
ZIP code 47712	9.7 mi	Evansville, IN
ZIP code 42419	11 mi	Henderson, KY
ZIP code 42420	12 mi	Henderson, KY
ZIP code 42437	13 mi	Morganfield, 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 42457, plotted from its record coordinates.

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

Scope ZIP code 42457. 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.