South Carrollton Kentucky ZIP Codes

South Carrollton holds a single ZIP code.

Every ZIP code in South Carrollton

The complete list of South Carrollton, Kentucky ZIP codes with the county each falls in.
ZIP code	County
42374	Muhlenberg County

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the South Carrollton codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for South Carrollton. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.

How these codes cluster

Every South Carrollton ZIP code begins 423. Those first three digits identify the sectional center facility that processes mail for this part of Kentucky. Statewide that range covers 45 ZIP codes, so South Carrollton accounts for 2% of it.

Every Kentucky ZIP prefix and the region it covers →

Area codes covering South Carrollton

ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The codes below serve the same ground South Carrollton occupies.

These codes are associated with South Carrollton through county-level matching, not a per-address guarantee.

South Carrollton Kentucky area codes in full →

Where South Carrollton's ZIP codes sit

Each point is one South Carrollton ZIP code, plotted from its record coordinates.

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

Cities near South Carrollton

The closest places to South Carrollton with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Central City Kentucky ZIP codes	2.7 mi	1 ZIP code
Bremen Kentucky ZIP codes	4.9 mi	1 ZIP code
Powderly Kentucky ZIP codes	6.7 mi	1 ZIP code
Island Kentucky ZIP codes	7.4 mi	1 ZIP code
Rockport Kentucky ZIP codes	8.3 mi	1 ZIP code
Greenville Kentucky ZIP codes	8.9 mi	1 ZIP code
Sacramento Kentucky ZIP codes	9.0 mi	1 ZIP code
Drakesboro Kentucky ZIP codes	9.5 mi	1 ZIP code

Straight-line distance between place reference points, not driving distance.