4 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Elkton | 1 | 2,340 | 2,065 | 2.41% | 844 | 2.77 | City |
| Guthrie | 2 | 1,333 | 1,337 | -0.07% | 586 | 2.28 | City |
| Trenton | 3 | 327 | 329 | 0% | 575 | 0.57 | City |
| Allensville | 4 | 201 | 160 | 6.91% | 176 | 1.14 | CDP |
Elkton is the largest city in Todd County, with a population of 2,340.
Allensville is the smallest city in Todd County.
There are 4 cities in Todd County, Kentucky.