ZIP CodesZIP codes in Hardin County, Kentucky
Hardin County, Kentucky has 15 ZIP codes in this list, from 40121 to 42788. They cover 12 places, among them Fort Knox, Radcliff, Elizabethtown and Rineyville.
Nothing in this county matches.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 40121 | Fort Knox | 35.2 | 37.893, -85.949 |
| 40122 | Fort Knox | no area | 37.891, -85.964 |
| 40159 | Radcliff | no area | 37.724, -85.977 |
| 40160 | Radcliff | 17.1 | 37.827, -85.940 |
| 40162 | Rineyville | 49.2 | 37.752, -85.995 |
| 40175 | Vine Grove | 80.7 | 37.859, -86.007 |
| 40177 | West Point | 15.5 | 37.995, -85.954 |
| 42701 | Elizabethtown | 162 | 37.685, -85.878 |
| 42702 | Elizabethtown | no area | 37.694, -85.859 |
| 42724 | Cecilia | 76.4 | 37.669, -86.055 |
| 42732 | Eastview | 54.1 | 37.606, -86.091 |
| 42740 | Glendale | 31.1 | 37.603, -85.892 |
| 42776 | Sonora | 66.1 | 37.522, -85.923 |
| 42784 | Upton | 65.9 | 37.457, -85.909 |
| 42788 | White Mills | 7.6 | 37.544, -86.040 |
The ZIP code areas of Hardin County add up to about 661 square miles of land (1,712 sq km) as the Census Bureau draws them. The largest is 42701 (Elizabethtown), with 162 square miles.
Places with more than one code here: Fort Knox (2 codes), Radcliff (2 codes), Elizabethtown (2 codes).
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Fort Knox, KY 40121.
- Tap a ZIP code to open it in the look-up, with a copy button for the address line.
- A code can cross a county line, and one town can have several codes. The table shows the main place of each code.
- "No area" means the Census Bureau draws no area for that code. Such codes are usually for post office boxes or a single building.
Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.