ZIP Code 42321

42321 is one of Kentucky's ZIP codes, delivering to addresses in Beech Creek, Muhlenberg County.

City: Beech Creek
County: Muhlenberg County
State: Kentucky
Prefix: 423xx

Where this code sits

42321 is part of the 423xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Beech Creek.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 42321 delivers to without sharing its boundary.

ZIP codes nearest 42321

The ZIP codes whose reference points sit closest to 42321.
ZIP code	Distance	Delivers to
ZIP code 42323	1.2 mi	Beechmont, KY
ZIP code 42337	2.9 mi	Drakesboro, KY
ZIP code 42326	3.6 mi	Browder, KY
ZIP code 42324	4.5 mi	Belton, KY
ZIP code 42332	5.9 mi	Cleaton, KY
ZIP code 42339	6.6 mi	Dunmor, KY
ZIP code 42345	7.3 mi	Greenville, KY
ZIP code 42367	7.3 mi	Powderly, 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 42321, plotted from its record coordinates.

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

Scope ZIP code 42321. 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.