| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Port St. Joe | 1 | 4,121 | 3,358 | 3.15% | 440 | 9 | City |
Port St. Joe is the largest city in Gulf County, with a population of 4,121.
Port St. Joe is the smallest city in Gulf County, with a population of 4,121.
There is 1 city in Gulf County, Florida.