10 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Audubon | 1 | 1,995 | 2,059 | -0.65% | 1,032 | 2 | City |
| Audubon | 2 | 1,995 | 2,060 | -0.65% | 1,032 | 2 | City |
| Exira | 3 | 760 | 789 | -0.78% | 801 | 1 | City |
| Exira | 4 | 760 | 790 | -0.78% | 801 | 1 | City |
| Kimballton | 5 | 279 | 289 | -0.71% | 366 | 1 | City |
| Kimballton | 6 | 279 | 289 | -0.71% | 366 | 1 | City |
| Brayton | 7 | 136 | 143 | -1.45% | 313 | 0 | City |
| Brayton | 8 | 136 | 143 | -1.45% | 313 | 0 | City |
| Gray | 9 | 62 | 61 | 0% | 62 | 1 | City |
| Gray | 10 | 62 | 61 | 0% | 62 | 1 | City |
Audubon is the largest city in Audubon County, with a population of 1,995.
Gray is the smallest city in Audubon County, with a population of 62.
There are 10 cities in Audubon County, Iowa.