In which county is ZIP code 40456 located?

ZIP 40456 is listed under Rockcastle, KY.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 40456: Mount Vernon, KY

ZIP: 40456

County: Rockcastle

Coordinates: 37.39830, -84.33790

ZIP Type: Standard

Time Zone: Eastern Time (ET)

Get a reliable snapshot of the Mount Vernon, KY postal area 40456. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Mount Vernon
ZIP Code	40456
County	Rockcastle
State	KY
Latitude / Longitude	37.39830, -84.33790
ZIP Type	Standard
Time Zone	Eastern Time (ET)
Data Updated	2026-01-08

Maps & Useful Links

Open in Maps: Google Maps · OpenStreetMap

These links show the approximate center point for ZIP 40456 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 40456 are listed as 37.39830 / -84.33790, useful for GPS and service checks in and around Mount Vernon, KY.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 40456 for mail delivery and general location reference in Rockcastle, KY.

This ZIP may extend beyond the city core into nearby communities within Rockcastle.

Related ZIP Codes (Nearby)

Explore other postal codes near Mount Vernon within KY.

Frequently Asked Questions

What is the primary city for ZIP code 40456?

The primary city for this ZIP code is Mount Vernon, located in KY.

In which county is 40456 located?

ZIP code 40456 is situated within Rockcastle, KY.

What are the coordinates for 40456?

The approximate center point is 37.39830 (Latitude) and -84.33790 (Longitude).

Is ZIP code 40456 active?

This page lists ZIP 40456 as Listed based on the latest refresh date shown above.

Does ZIP 40456 cover multiple areas?

Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.

Methodology & Data Notes

How we build this page: We generate this page from a structured ZIP dataset and refresh key fields (city, county, and coordinates) during scheduled updates. Coordinates represent an approximate center point, not an official boundary map.
Sources: Public ZIP reference datasets and geographic coordinate references. If you use specific sources (e.g., USPS, Census), list them on your About/Methodology page.

Page updated: 2026-01-08