5 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Prattville | 1 | 40,292 | 37,856 | 1.22% | 1,128 | 35.73 | City |
| Holtville | 2 | 5,209 | 4,476 | 1.46% | 241 | 21.59 | CDP |
| Marbury | 3 | 2,303 | 2,040 | 2.63% | 99 | 23.15 | CDP |
| Autaugaville | 4 | 809 | 796 | 0.37% | 103 | 7.83 | Town |
| Billingsley | 5 | 124 | 124 | 0% | 106 | 1.18 | Town |
Prattville is the largest city in Autauga County, with a population of 40,292.
Billingsley is the smallest city in Autauga County.
There are 5 cities in Autauga County, Alabama.