8 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Sandy Springs | 1 | 104,210 | 108,167 | -0.75% | 2,767 | 38 | City |
| Roswell | 2 | 90,880 | 92,944 | -0.45% | 2,232 | 41 | City |
| Alpharetta | 3 | 67,784 | 65,964 | 0.54% | 2,520 | 27 | City |
| Duluth | 4 | 32,668 | 31,872 | 0.49% | 3,222 | 10 | City |
| Union City | 5 | 28,344 | 27,064 | 0.91% | 1,441 | 20 | City |
| Fairburn | 6 | 16,722 | 16,569 | 0.19% | 989 | 17 | City |
| Hapeville | 7 | 6,776 | 6,563 | 0.64% | 2,848 | 2 | City |
| Palmetto | 8 | 4,977 | 5,086 | -0.44% | 420 | 12 | City |
Sandy Springs is the largest city in Fulton County, with a population of 104,210.
Palmetto is the smallest city in Fulton County, with a population of 4,977.
There are 8 cities in Fulton County, Georgia.