ZIP Code 40121
Fort Knox · Hardin, Kentucky
40121 is the ZIP code of Fort Knox in Hardin, Kentucky, United States.
- ZIP Code
- 40121
- County
- Hardin
- State
- Kentucky
- Country
- United States
Place with ZIP code 40121
| Place | County | Location |
|---|---|---|
| Fort Knox | Hardin | 37.893, -85.949 |
Near Louisville
The nearest major city is Louisville, about 43 km away.
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 40121?
Fort Knox.
Which county and state is 40121 in?
Hardin, Kentucky, United States.
What is the nearest major city to 40121?
Louisville, about 43 km away.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.