9 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Moberly | 1 | 13,214 | 13,582 | -0.46% | 1,003 | 13 | City |
| Huntsville | 2 | 1,338 | 1,373 | -0.45% | 577 | 2 | City |
| Higbee | 3 | 433 | 447 | -0.46% | 1,093 | 0 | City |
| Clark | 4 | 421 | 429 | -0.71% | 12 | 36 | Township |
| Clark | 5 | 237 | 242 | -0.42% | 396 | 1 | City |
| Cairo | 6 | 199 | 204 | -0.5% | 663 | 0 | Village |
| Renick | 7 | 148 | 151 | 0% | 410 | 0 | Village |
| Jacksonville | 8 | 120 | 123 | 0% | 1,091 | 0 | Village |
| Clifton Hill | 9 | 85 | 88 | 0% | 486 | 0 | City |
Moberly is the largest city in Randolph County, with a population of 13,214.
Clifton Hill is the smallest city in Randolph County, with a population of 85.
There are 9 cities in Randolph County, Missouri.