7 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Bardstown | 1 | 14,000 | 13,579 | 0.6% | 1,156 | 12.11 | City |
| Bloomfield | 2 | 987 | 959 | 0.61% | 685 | 1.44 | City |
| New Haven | 3 | 823 | 798 | 0.61% | 1,419 | 0.58 | City |
| Chaplin | 4 | 649 | 577 | 2.37% | 469 | 1.38 | CDP |
| Boston | 5 | 202 | 138 | -1.94% | 103 | 1.96 | CDP |
| Fairfield | 6 | 137 | 119 | 3.01% | 479 | 0.29 | City |
| New Hope | 7 | 12 | 63 | -36.84% | 19 | 0.62 | CDP |
Bardstown is the largest city in Nelson County, with a population of 14,000.
New Hope is the smallest city in Nelson County.
There are 7 cities in Nelson County, Kentucky.