9 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Savannah | 1 | 7,616 | 7,358 | 0.67% | 1,117 | 7 | City |
| Olivet | 2 | 1,305 | 1,599 | -0.23% | 219 | 6 | CDP |
| Crump | 3 | 939 | 906 | 0.64% | 185 | 5 | City |
| Counce | 4 | 495 | 405 | 7.14% | 327 | 2 | CDP |
| Saltillo | 5 | 432 | 421 | 0.47% | 141 | 3 | Town |
| Nixon | 6 | 357 | 249 | 6.89% | 202 | 2 | CDP |
| Morris Chapel | 7 | 261 | 77 | 6.97% | 99 | 3 | CDP |
| Walnut Grove | 8 | 212 | 215 | -5.36% | 37 | 6 | CDP |
| Shiloh | 9 | 188 | 204 | 7.43% | 126 | 1 | CDP |
Savannah is the largest city in Hardin County, with a population of 7,616.
Shiloh is the smallest city in Hardin County, with a population of 188.
There are 9 cities in Hardin County, Tennessee.