Postal Code
40423
Postal Code 40423
Country United States
ISO Code US
ZIP Code 40423

Postal Information

Postal Code 40423
City Danville
County Boyle
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
40422 Danville Kentucky 1.0 km
40440 Junction City Kentucky 8.3 km
40310 Burgin Kentucky 12.4 km
40410 Bryantsville Kentucky 13.5 km
40464 Parksville Kentucky 14.6 km
40444 Lancaster Kentucky 15.9 km
40330 Harrodsburg Kentucky 16.2 km
40484 Stanford Kentucky 16.3 km
40468 Perryville Kentucky 17.4 km
40446 Lancaster Kentucky 17.4 km
40452 Mitchellsburg Kentucky 17.7 km
40448 McKinney Kentucky 21.1 km
40437 Hustonville Kentucky 23.1 km
40390 Wilmore Kentucky 26.7 km
40328 Gravel Switch Kentucky 28.9 km
40040 Mackville Kentucky 29.1 km

Postal Hierarchy

ZIP Code40423

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

About ZIP Code 40423 in Danville, Kentucky

ZIP Code 40423 for Danville, 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 40423.

Administratively it is recorded in Boyle, 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.