5 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Center township | 1 | 9,517 | 9,366 | 0.65% | 264 | 36.04 | Township |
| New London | 2 | 988 | 938 | 1.02% | 1,424 | 0.69 | City |
| Perry | 3 | 694 | 668 | 0.73% | 502 | 1.38 | City |
| Center | 4 | 539 | 536 | 0.19% | 1,321 | 0.41 | City |
| Saverton | 5 | 110 | 118 | 6.8% | 114 | 0.96 | CDP |
Center township is the largest city in Ralls County, with a population of 9,517.
Saverton is the smallest city in Ralls County.
There are 5 cities in Ralls County, Missouri.