ZIP Code 42327

42327 is one of Kentucky's ZIP codes, delivering to addresses in Calhoun, McLean County.

City: Calhoun
County: McLean County
State: Kentucky
Prefix: 423xx

Where this code sits

42327 is part of the 423xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Calhoun.

Calhoun Kentucky ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 42327 delivers to without sharing its boundary.

ZIP codes nearest 42327

The ZIP codes whose reference points sit closest to 42327.
ZIP code	Distance	Delivers to
ZIP code 42371	4.7 mi	Rumsey, KY
ZIP code 42322	7.1 mi	Beech Grove, KY
ZIP code 42377	8.4 mi	West Louisville, KY
ZIP code 42356	8.6 mi	Maple Mount, KY
ZIP code 42352	9.7 mi	Livermore, KY
ZIP code 42350	11 mi	Island, KY
ZIP code 42372	11 mi	Sacramento, KY
ZIP code 42334	11 mi	Curdsville, 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 42327, plotted from its record coordinates.

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

Scope ZIP code 42327. 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.