ZIP Code 42259

42259 is one of Kentucky's ZIP codes, delivering to addresses in Mammoth Cave, Edmonson County.

City: Mammoth Cave
County: Edmonson County
State: Kentucky
Prefix: 422xx

Where this code sits

42259 is part of the 422xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Mammoth Cave.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 42259 delivers to without sharing its boundary.

ZIP codes nearest 42259

The ZIP codes whose reference points sit closest to 42259.
ZIP code	Distance	Delivers to
ZIP code 42729	5.4 mi	Cub Run, KY
ZIP code 42207	6.2 mi	Bee Spring, KY
ZIP code 42285	7.2 mi	Sweeden, KY
ZIP code 42210	7.9 mi	Brownsville, KY
ZIP code 42726	11 mi	Clarkson, KY
ZIP code 42275	13 mi	Roundhill, KY
ZIP code 42765	14 mi	Munfordville, KY
ZIP code 42160	15 mi	Park City, 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 42259, plotted from its record coordinates.

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

Scope ZIP code 42259. 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.