| Place Name | Hardin |
| Place Type | City |
| ZIP Code(s) | 42048 |
| County | Marshall County |
| Area Code(s) | 270,364 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 545 |
| Population Growth Rate (2010-19) | -5.69% |
| Majority Ethnicity | White 98.33% |
| US Congressional District(s) | Kentucky 1st |
| State House Districts | 6 |
| State Senate Districts | 2 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 98.33% |
| African American | 0.5% |
| Hispanic | 0% |
| Asian | 1.17% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |