Postal reference / United States

42327Calhoun, Kentucky

ZIP code 42327 is a United States postal code for Calhoun, Kentucky. Its county association is McLean County. The map reference point is at 37.575, -87.2773.

State / territory
Kentucky
Recorded place name
Calhoun
County association
McLean
Estimated coordinate
37.575, -87.2773
View on OpenStreetMap
ZIP prefix
423 · 45 ZIP codes share it
Data source
GeoNames postal reference, snapshot September 26, 2026

GeoNames reference data. County associations may not include every intersecting county, place names are postal names rather than legal boundaries, and coordinates are approximate. This is not address validation.

Area

Land area
123.387 sq mi (2023 Census Gazetteer)

Figures are for the ZIP Code Tabulation Area (ZCTA) that most closely matches this ZIP code, not an exact match to USPS delivery boundaries. Source: U.S. Census Bureau, 2023 Gazetteer + 2023 ACS 5-Year Estimates, retrieved 2026-09-27. How to read this data.

Need the last four digits?

ZIP+4 depends on the full delivery address. A five-digit code alone cannot determine its extension.

Find ZIP+4

Explore Kentucky

Browse the other 945 ZIP codes recorded for Kentucky, sorted by code with place and county.

Kentucky directory

Nearby ZIP code reference points

ZIP codePlaceStateCounty associationMiles
42371RumseyKYMcLean4.7
42322Beech GroveKYMcLean7.1
42377West LouisvilleKYDaviess8.4
42356Maple MountKYDaviess8.6
42352LivermoreKYMcLean9.7
42350IslandKYMcLean10.6
42372SacramentoKYMcLean10.9
42334CurdsvilleKYDaviess11.4

Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.

Verify a mailing address

For mailing, confirm the complete street or PO Box address with USPS. A place record does not confirm delivery eligibility or the ZIP+4 extension.

Open USPS address lookup