3 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Johns Creek | 1 | 80,123 | 82,585 | -0.61% | 2,600 | 30.81 | City |
| Sugar Hill | 2 | 26,398 | 25,125 | 0.98% | 2,362 | 11.17 | City |
| Cumming | 3 | 10,879 | 7,358 | 6.92% | 1,443 | 7.54 | City |
Johns Creek is the largest city in Forsyth County, with a population of 80,123.
Cumming is the smallest city in Forsyth County.
There are 3 cities in Forsyth County, Georgia.