Mount Vernon Kentucky ZIP Codes
Mount Vernon holds a single ZIP code.
Every ZIP code in Mount Vernon
| ZIP code | County |
|---|---|
| 40456 | Rockcastle 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Mount Vernon codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Mount Vernon. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.
How these codes cluster
Every Mount Vernon ZIP code begins 404. Those first three digits identify the sectional center facility that processes mail for this part of Kentucky. Statewide that range covers 33 ZIP codes, so Mount Vernon accounts for 3% of it.
Every Kentucky ZIP prefix and the region it covers →
Area codes covering Mount Vernon
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The code below serves the same ground Mount Vernon occupies.
Mount Vernon Kentucky area codes in full →
Where Mount Vernon's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Mount Vernon
| City | Distance | ZIP codes |
|---|---|---|
| Brodhead Kentucky ZIP codes | 5.7 mi | 1 ZIP code |
| Livingston Kentucky ZIP codes | 7.7 mi | 1 ZIP code |
| Crab Orchard Kentucky ZIP codes | 12 mi | 1 ZIP code |
| Berea Kentucky ZIP codes | 16 mi | 2 ZIP codes |
| Eubank Kentucky ZIP codes | 18 mi | 1 ZIP code |
| Science Hill Kentucky ZIP codes | 21 mi | 1 ZIP code |
| Stanford Kentucky ZIP codes | 22 mi | 1 ZIP code |
| London Kentucky ZIP codes | 22 mi | 6 ZIP codes |
Straight-line distance between place reference points, not driving distance.