8 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Palm Coast | 1 | 110,362 | 89,739 | 3.88% | 1,154 | 95.67 | City |
| St. Augustine Beach | 2 | 6,739 | 6,838 | -0.3% | 3,165 | 2.13 | City |
| Flagler Beach | 3 | 5,794 | 5,161 | 2.24% | 1,634 | 3.55 | City |
| Butler Beach | 4 | 4,801 | 4,814 | -0.21% | 1,887 | 2.54 | CDP |
| Bunnell | 5 | 4,249 | 3,324 | 4.55% | 30 | 139.43 | City |
| Crescent Beach | 6 | 937 | 1,085 | 0% | 652 | 1.44 | CDP |
| Beverly Beach | 7 | 544 | 474 | 2.64% | 1,766 | 0.31 | Town |
| Marineland | 8 | 9 | 8 | 0% | 23 | 0.39 | Town |
Palm Coast is the largest city in Flagler County, with a population of 110,362.
Marineland is the smallest city in Flagler County.
There are 8 cities in Flagler County, Florida.