Identifiers: city · CDP
| Rank | Community | Population |
|---|---|---|
| 1 | Elizabethtown (city), KY | 31,394 |
| 2 | Radcliff (city), KY | 23,042 |
| 3 | Shepherdsville (city), KY | 14,201 |
| 4 | Hillview (city), KY | 8,622 |
| 5 | Fort Knox (CDP), KY | 7,742 |
| 6 | Vine Grove (city), KY | 6,559 |
| 7 | Hodgenville (city), KY | 3,235 |
| 8 | Rineyville (CDP), KY | 3,039 |
| 9 | Brandenburg (city), KY | 2,894 |
| 10 | Doe Valley (CDP), KY | 2,270 |
| 11 | Lebanon Junction (city), KY | 1,746 |
| 12 | Irvington (city), KY | 1,231 |
| 13 | Muldraugh (city), KY | 1,040 |
| 14 | West Point (city), KY | 952 |
| 15 | Cecilia (CDP), KY | 575 |
| 16 | Sonora (city), KY | 565 |
| 17 | Boston (CDP), KY | 253 |
| 18 | Ekron (city), KY | 175 |