| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Mount Ida | 1 | 1,001 | 1,027 | -0.4% | 638 | 2 | City |
| Norman | 2 | 307 | 305 | 0% | 273 | 1 | Town |
| Oden | 3 | 183 | 179 | 0% | 225 | 1 | Town |
| Black Springs | 4 | 91 | 91 | 0% | 204 | 0 | Town |
Mount Ida is the largest city in Montgomery County, with a population of 1,001.
Black Springs is the smallest city in Montgomery County, with a population of 91.
There are 4 cities in Montgomery County, Arkansas.