Postal Code
42603
Postal Code 42603
Country United States
ISO Code US
ZIP Code 42603

Postal Information

Postal Code 42603
City Alpha
County Clinton
Region Kentucky
Country United States

Nearby Postal Codes

Distances are calculated geographically from this postal code, not from administrative boundaries.

Postal Code City Region Coordinates
42602 Albany Kentucky 11.2 km
42629 Jamestown Kentucky 21.5 km
42711 Bakerton Kentucky 21.7 km
42633 Monticello Kentucky 21.9 km
38549 Byrdstown Tennessee 23.9 km
38577 Pall Mall Tennessee 26.5 km
42717 Burkesville Kentucky 27.7 km
42741 Glens Fork Kentucky 28.1 km
42642 Russell Springs Kentucky 30.3 km
42786 Waterview Kentucky 32.6 km
42715 Breeding Kentucky 33.5 km
42735 Fairplay Kentucky 35.6 km
38551 Celina Tennessee 36.0 km
38573 Monroe Tennessee 38.1 km
38541 Allons Tennessee 38.6 km
42759 Marrowbone Kentucky 38.8 km

Postal Hierarchy

ZIP Code42603

ZIP Code (5 digits) with optional ZIP+4 extension.

About ZIP Code 42603 in Alpha, Kentucky

ZIP Code 42603 for Alpha, Kentucky is part of the United States postal code system, which uses a numeric code of 5 (or 5+4) digits (e.g. 10001). Addresses here are organised as State → County → City. Within the code structure it maps to ZIP Code 42603.

Administratively it is recorded in Clinton, Kentucky within United States. Postal codes are assigned by delivery route rather than by administrative boundary, so a single code can cover more than one locality and a locality can fall under several codes.

No building-level records are held for this code in the imported dataset, so only the code and its location details are shown. The absence of records does not mean the zip code is unused.

Couriers, e-commerce checkout forms and address autocomplete tools all rely on the zip code to route mail and to check that a stated address matches the code. Because a zip code identifies a delivery area rather than a single building, two addresses that share the same code can still be some distance apart.

Always write United States ZIP Code in full when completing a form, including any leading zero. Enter a valid US ZIP Code, e.g. 10001 or 10001-1234. Data source: a third-party open dataset. This is a reference snapshot, not a live government feed, so confirm the code with the sender, carrier or postal authority before relying on it.

Buildings & Addresses for This Code

No building-level records were found for this postal code in the imported dataset.
Information provided on CodeReff is for reference purposes only. Always verify financial and banking details with the relevant institution before use.