Hardin County, KY ZIP codes
There are 13 ZIP codes in Hardin County, KY, in 10 towns, from 40121 to 42788. The largest are 42701 (Elizabethtown), 40160 (Radcliff) and 40162 (Rineyville).
The county seat is Elizabethtown.
- ZIP codes
- 13
- Towns
- 10
- County seat
- Elizabethtown
- County FIPS
21093- State
- Kentucky
- Population
- 111,942
- Median household income
- $67,647
- Land area
- 624 sq mi
- Metro area
- Elizabethtown
Hardin County ZIP codes by town
- Elizabethtown (county seat)
- 42701, 42702
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
Map of Hardin County ZIP codes
The ZIP codes of Hardin County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Hardin County in numbers
About 111,942 people live in Hardin County, in 44,622 households, the 6th most populous of Kentucky's 120 counties. The median household income is $67,647 a year, 6% above the Kentucky median of $63,726 (US: $80,734). The median owner-occupied home is valued at $225,800 (10% above the Kentucky median), and median gross rent is $971 a month. The median age is 37.3; 24.8% of adults 25 and over hold a bachelor's degree or higher (27.6% across Kentucky); the average commute takes 22 minutes.
| Population | 111,942 |
|---|---|
| Households | 44,622 |
| Median age | 37.3 |
| Median household income | $67,647 |
| Median home value | $225,800 |
| Median gross rent | $971 |
| Bachelor's degree or higher | 24.8% |
| Mean commute | 22.4 min |
| Population density | 179 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in Hardin County
| Town | ZIP codes | Population |
|---|---|---|
| Elizabethtown | 2 | 32,576 |
| Radcliff | 2 | 22,864 |
| Fort Knox | 2 | 8,836 |
| Rineyville | 1 | 2,470 |
| Glendale | 1 | 1,873 |
| Eastview | 1 | 1,541 |
| Sonora | 1 | 653 |
| Cecilia | 1 | 503 |
| Big Clifty | 1 | 285 |
| White Mills | 1 | 192 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with Hardin County.
- Jefferson County (72)
- Bullitt County (8)
- Nelson County (9)
- Meade County (8)
- Grayson County (5)
- Breckinridge County (14)
- Hart County (8)
- Larue County (2)
Not sure you are in Hardin County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Hardin County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
40121 | Fort Knox , KY | Standard | 8,836 | $82,663 | — |
40122 | Fort Knox , KY | No street area | — | — | — |
40159 | Radcliff , KY | No street area | — | — | — |
40160 | Radcliff , KY | Standard | 23,624 | $58,506 | $165,900 |
40162 | Rineyville , KY | Standard | 6,180 | $84,720 | $304,600 |
42701 | Elizabethtown , KY | Standard | 53,987 | $69,619 | $260,300 |
42702 | Elizabethtown , KY | No street area | — | — | — |
42712 | Big Clifty , KY | Standard | 1,714 | $45,870 | $147,400 |
42724 | Cecilia , KY | Standard | 5,345 | $73,465 | $197,400 |
42732 | Eastview , KY | Standard | 1,541 | $73,148 | $265,700 |
42740 | Glendale , KY | Standard | 1,873 | $88,066 | $238,900 |
42776 | Sonora , KY | Standard | 2,082 | $58,771 | $192,700 |
42788 | White Mills , KY | Standard | 192 | — | — |
Cite this page
zipcodes.pro. “Hardin County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/ky/county/hardin
Underlying data is public domain or openly licensed — sources, vintages and licences.