| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Ocilla | 1 | 2,702 | 3,455 | -4.76% | 1,062 | 3 | City |
Ocilla is the largest city in Irwin County, with a population of 2,702.
Ocilla is the smallest city in Irwin County, with a population of 2,702.
There is 1 city in Irwin County, Georgia.