5 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Audubon | 1 | 1,959 | 2,059 | -1.01% | 1,013 | 1.93 | City |
| Exira | 2 | 745 | 790 | -1.19% | 785 | 0.95 | City |
| Kimballton | 3 | 276 | 291 | -1.08% | 362 | 0.76 | City |
| Brayton | 4 | 133 | 143 | -1.48% | 306 | 0.43 | City |
| Gray | 5 | 61 | 61 | 0% | 61 | 1 | City |
Audubon is the largest city in Audubon County, with a population of 1,959.
Gray is the smallest city in Audubon County.
There are 5 cities in Audubon County, Iowa.