ZIP code · Fort Knox · Kentucky · United States
ZIP code 40122 — Fort Knox
ZIP code 40122 serves Fort Knox, Kentucky.
- Postal code
- 40122Single source Value from one source, not cross-checked.
- City
- Fort Knox
- County
- Hardin
- State
- Kentucky
- Country
- United States
- Coordinates
- 37.8911, -85.9636 — precision precise (locality)
View on OpenStreetMap - 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
- 270 (from the nearest rate centre)Telephone 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 40122 with another ZIP · ZIPs within 25 miles · distance from 40122
Climate — monthly normals
Warmest month Jul (avg high 86°F), coldest Jan (avg low 23°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 43 | 47 | 57 | 69 | 76 | 83 | 86 | 86 | 80 | 69 | 56 | 46 |
| Avg low °F | 23 | 25 | 33 | 42 | 53 | 61 | 65 | 63 | 56 | 44 | 34 | 27 |
| Precip in | 4.0 | 3.5 | 4.9 | 5.4 | 6.0 | 4.5 | 4.9 | 3.6 | 3.8 | 3.9 | 4.0 | 4.8 |
NOAA 1991–2020 climate normals from the nearest station: BRANDENBURG (9.4 mi) · NOAA NCEI
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 · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page