8 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Sandy Springs | 1 | 104,151 | 108,212 | -0.65% | 2,765 | 38 | City |
| Roswell | 2 | 91,871 | 92,939 | -0.19% | 2,256 | 41 | City |
| Alpharetta | 3 | 67,929 | 65,966 | 0.48% | 2,525 | 27 | City |
| Duluth | 4 | 33,758 | 31,955 | 0.9% | 3,275 | 10 | City |
| Union City | 5 | 28,751 | 27,082 | 0.98% | 1,461 | 20 | City |
| Fairburn | 6 | 17,619 | 16,563 | 1.01% | 1,042 | 17 | City |
| Hapeville | 7 | 6,786 | 6,564 | 0.55% | 2,852 | 2 | City |
| Palmetto | 8 | 5,274 | 5,090 | 0.59% | 445 | 12 | City |
Sandy Springs is the largest city in Fulton County, with a population of 104,151.
Palmetto is the smallest city in Fulton County, with a population of 5,274.
There are 8 cities in Fulton County, Georgia.