6 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Ellington | 1 | 759 | 793 | -0.91% | 519 | 1 | City |
| Ellington | 2 | 759 | 791 | -0.91% | 519 | 1 | City |
| Bunker | 3 | 296 | 300 | -0.34% | 446 | 1 | City |
| Bunker | 4 | 296 | 299 | -0.34% | 446 | 1 | City |
| Centerville | 5 | 162 | 167 | -0.61% | 508 | 0 | City |
| Centerville | 6 | 162 | 167 | -0.61% | 508 | 0 | City |
Ellington is the largest city in Reynolds County, with a population of 759.
Centerville is the smallest city in Reynolds County, with a population of 162.
There are 6 cities in Reynolds County, Missouri.