10 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Mount Washington | 1 | 19,047 | 18,124 | 0.98% | 1,990 | 10 | City |
| Shepherdsville | 2 | 14,987 | 14,236 | 1.01% | 921 | 16 | City |
| Hillview | 3 | 9,040 | 8,649 | 0.87% | 1,346 | 7 | City |
| Pioneer Village | 4 | 2,787 | 2,672 | 0.83% | 2,273 | 1 | City |
| Brooks | 5 | 1,986 | 2,223 | -1.39% | 562 | 4 | CDP |
| Lebanon Junction | 6 | 1,834 | 1,752 | 0.88% | 325 | 6 | City |
| Heritage Creek | 7 | 1,248 | 1,210 | 0.56% | 2,307 | 1 | City |
| Hebron Estates | 8 | 1,060 | 1,012 | 0.86% | 1,794 | 1 | City |
| Fox Chase | 9 | 457 | 437 | 0.88% | 1,196 | 0 | City |
| Hunters Hollow | 10 | 336 | 323 | 0.6% | 4,667 | 0 | City |
Mount Washington is the largest city in Bullitt County, with a population of 19,047.
Hunters Hollow is the smallest city in Bullitt County, with a population of 336.
There are 10 cities in Bullitt County, Kentucky.