9 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Mount Washington | 1 | 19,232 | 18,124 | 0.97% | 2,009 | 10 | City |
| Shepherdsville | 2 | 15,137 | 14,236 | 1% | 930 | 16 | City |
| Hillview | 3 | 9,118 | 8,649 | 0.86% | 1,358 | 7 | City |
| Pioneer Village | 4 | 2,810 | 2,672 | 0.83% | 2,292 | 1 | City |
| Lebanon Junction | 5 | 1,851 | 1,752 | 0.93% | 328 | 6 | City |
| Heritage Creek | 6 | 1,256 | 1,210 | 0.64% | 2,322 | 1 | City |
| Hebron Estates | 7 | 1,070 | 1,012 | 0.94% | 1,810 | 1 | City |
| Fox Chase | 8 | 461 | 437 | 0.88% | 1,207 | 0 | City |
| Hunters Hollow | 9 | 339 | 323 | 0.89% | 4,708 | 0 | City |
Mount Washington is the largest city in Bullitt County, with a population of 19,232.
Hunters Hollow is the smallest city in Bullitt County, with a population of 339.
There are 9 cities in Bullitt County, Kentucky.