| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Ellington | 1 | 770 | 792 | -0.9% | 527 | 1 | City |
| Bunker | 2 | 296 | 299 | -0.34% | 446 | 1 | City |
| Centerville | 3 | 163 | 168 | -1.21% | 511 | 0 | City |
Ellington is the largest city in Reynolds County, with a population of 770.
Centerville is the smallest city in Reynolds County, with a population of 163.
There are 3 cities in Reynolds County, Missouri.