| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Carrabelle | 1 | 2,556 | 2,622 | -0.62% | 534 | 5 | City |
| Apalachicola | 2 | 2,503 | 2,337 | 1.21% | 1,300 | 2 | City |
Carrabelle is the largest city in Franklin County, with a population of 2,556.
Apalachicola is the smallest city in Franklin County, with a population of 2,503.
There are 2 cities in Franklin County, Florida.