Hardin County, Kentucky ZIP codes
13 ZIP codes are in Hardin County, plus 7 that cross in from neighboring counties. It's part of the Elizabethtown, KY metro area.
- ZIP codes
- 13
- Population in these ZIPs
- 105,374
- Avg. median income
- $69,100population-weighted
- Cities & towns
- 10
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Hardin County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 40121 | Fort Knox | 8,836 | $82,663 | — |
| 40122 PO Box | Fort Knox | — | — | — |
| 40159 PO Box | Radcliff | — | — | — |
| 40160 | Radcliff | 23,624 | $58,506 | $210,500 |
| 40162 | Rineyville | 6,180 | $84,720 | $284,600 |
| 42701 | Elizabethtown | 53,987 | $69,619 | $267,600 |
| 42702 PO Box | Elizabethtown | — | — | — |
| 42712 | Big Clifty | 1,714 | $45,870 | $166,400 |
| 42724 | Cecilia | 5,345 | $73,465 | $229,400 |
| 42732 | Eastview | 1,541 | $73,148 | $178,700 |
| 42740 | Glendale | 1,873 | $88,066 | $251,900 |
| 42776 | Sonora | 2,082 | $58,771 | $223,400 |
| 42788 | White Mills | 192 | — | — |
ZIP codes partly in Hardin County
These ZIP codes are mostly in a neighboring county but cover part of Hardin County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 40051 | New Haven | Nelson County | 4,658 | $80,337 | $210,600 |
| 40140 | Garfield | Breckinridge County | 866 | $81,708 | $199,700 |
| 40150 | Lebanon Junction | Bullitt County | 4,950 | $65,500 | $230,200 |
| 40175 | Vine Grove | Meade County | 15,718 | $77,509 | $259,800 |
| 40177 | West Point | Bullitt County | 1,523 | $50,577 | $123,000 |
| 42748 | Hodgenville | Larue County | 9,365 | $65,691 | $232,600 |
| 42784 | Upton | Hart County | 3,089 | $68,699 | $197,100 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Hardin County
Nearby counties
Frequently asked questions
How many ZIP codes are in Hardin County, Kentucky?
13 ZIP codes are mainly in Hardin County, and 7 more ZIP codes from neighboring areas reach partly into it.
What cities are in Hardin County?
ZIP codes in Hardin County use the city names Big Clifty, Cecilia, Eastview, Elizabethtown, Fort Knox, Glendale, Radcliff, Rineyville, Sonora and White Mills.
What metro area is Hardin County in?
Hardin County is part of the Elizabethtown, KY metropolitan statistical area.