ZIP Code 42339

42339 is one of Kentucky's ZIP codes, delivering to addresses in Dunmor, Muhlenberg County.

City: Dunmor
County: Muhlenberg County
State: Kentucky
Prefix: 423xx

Where this code sits

42339 is part of the 423xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Dunmor.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 42339 delivers to without sharing its boundary.

ZIP codes nearest 42339

The ZIP codes whose reference points sit closest to 42339.
ZIP code	Distance	Delivers to
ZIP code 42324	4.9 mi	Belton, KY
ZIP code 42256	5.6 mi	Lewisburg, KY
ZIP code 42323	6.4 mi	Beechmont, KY
ZIP code 42321	6.6 mi	Beech Creek, KY
ZIP code 42326	8.0 mi	Browder, KY
ZIP code 42337	9.2 mi	Drakesboro, KY
ZIP code 42216	9.7 mi	Clifty, KY
ZIP code 42273	12 mi	Rochester, 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 42339, plotted from its record coordinates.

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

Scope ZIP code 42339. 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.