ZIP code · Fort Knox · Kentucky · United States
ZIP code 40121 — Fort Knox
ZIP code 40121 serves Fort Knox, Kentucky.
- Postal code
- 40121Single source Value from one source, not cross-checked.
- City
- Fort Knox
- County
- Hardin
- State
- Kentucky
- Country
- United States
- Coordinates
- 37.8928, -85.9489 — precision precise (locality)
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Nearby localities
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. Data generated on 2026-08-21. Methodology · Report an error on this page