5 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Audubon | 1 | 1,982 | 2,060 | -0.65% | 1,025 | 2 | City |
| Exira | 2 | 754 | 790 | -0.79% | 795 | 1 | City |
| Kimballton | 3 | 277 | 289 | -0.72% | 364 | 1 | City |
| Brayton | 4 | 135 | 143 | -0.74% | 310 | 0 | City |
| Gray | 5 | 62 | 61 | 0% | 62 | 1 | City |
Audubon is the largest city in Audubon County, with a population of 1,982.
Gray is the smallest city in Audubon County, with a population of 62.
There are 5 cities in Audubon County, Iowa.