4 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Mount Ida | 1 | 1,019 | 1,022 | 0% | 649 | 2 | City |
| Norman | 2 | 304 | 306 | 0% | 270 | 1 | Town |
| Oden | 3 | 185 | 179 | 0.54% | 227 | 1 | Town |
| Black Springs | 4 | 94 | 91 | 1.08% | 211 | 0 | Town |
Mount Ida is the largest city in Montgomery County, with a population of 1,019.
Black Springs is the smallest city in Montgomery County, with a population of 94.
There are 4 cities in Montgomery County, Arkansas.