ZIP code · Mount Vernon · Kentucky · United States
ZIP code 40456 — Mount Vernon
ZIP code 40456 serves Mount Vernon, Kentucky.
- Postal code
- 40456Single source Value from one source, not cross-checked.
- City
- Mount Vernon
- County
- Rockcastle FIPS 21203
- State
- Kentucky
- Country
- United States
- Coordinates
- 37.3983, -84.3379 — precision precise (locality)
View on OpenStreetMap - Population
- 8,324 (ZCTA, ACS 5-year)
- Population density
- 51 / sq mi
- Land area
- 162.8 sq mi (421.6 km²) (ZCTA, ACS 5-year)
- Median household income
- $46,879
- Per-capita income
- $29,948
- Median age
- 45.5
- Households
- 3,542
- Housing units
- 4,111
- Median home value
- $140,600
- Median gross rent
- $678 / month
- Congressional district
- KY-5 (119th Congress)
- USDA hardiness zone
- 7a (0 to 5 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/New_York (UTC−5 / UTC−4 DST)
- Area code
- 606Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.
Tools: compare 40456 with another ZIP · ZIPs within 25 miles · distance from 40456
Map of ZIP code 40456
Climate — monthly normals
Warmest month Jul (avg high 84°F), coldest Jan (avg low 25°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 42 | 47 | 56 | 67 | 75 | 82 | 84 | 84 | 79 | 69 | 56 | 46 |
| Avg low °F | 25 | 27 | 35 | 44 | 54 | 62 | 66 | 64 | 57 | 45 | 35 | 29 |
| Precip in | 4.2 | 4.0 | 4.9 | 4.8 | 4.9 | 4.8 | 4.6 | 3.6 | 3.5 | 3.6 | 3.5 | 4.9 |
NOAA 1991–2020 climate normals from the nearest station: MT VERNON (3.0 mi) · NOAA NCEI
Places in ZIP 40456
- 12 schools
- 1 hospitals & clinics
- 2 supermarkets
- 12 restaurants & cafés
- 3 parks
- 6 playgrounds
- 1 gyms & sports centres
- 1 libraries
- 1 post offices
- 27 places of worship
- 10 gas stations
- 1 police & fire stations
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page