20 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Paola | 1 | 5,795 | 5,757 | 0.14% | 1,094 | 5.30 | City |
| Louisburg | 2 | 5,298 | 4,978 | 1.22% | 1,086 | 4.88 | City |
| Osawatomie | 3 | 4,235 | 4,250 | -0.07% | 806 | 5.25 | City |
| Richland township | 4 | 2,094 | 2,018 | 0.92% | 32 | 66.05 | Township |
| Wea township | 5 | 2,078 | 2,007 | 0.92% | 48 | 43.65 | Township |
| Middle Creek township | 6 | 1,866 | 1,806 | 0.86% | 32 | 58.27 | Township |
| Ten Mile township | 7 | 1,604 | 1,554 | 0.88% | 34 | 46.66 | Township |
| Valley township | 8 | 1,361 | 1,309 | 0.96% | 39 | 34.87 | Township |
| Paola township | 9 | 1,114 | 1,081 | 0.81% | 43 | 25.91 | Township |
| Stanton township | 10 | 868 | 845 | 0.7% | 22 | 39.77 | Township |
| Osawatomie township | 11 | 738 | 713 | 0.96% | 22 | 33.78 | Township |
| Mound township | 12 | 727 | 702 | 0.83% | 23 | 31.99 | Township |
| Osage township | 13 | 679 | 651 | 1.04% | 17 | 40.59 | Township |
| Sugar Creek township | 14 | 547 | 525 | 1.11% | 14 | 39.30 | Township |
| Miami township | 15 | 533 | 516 | 0.76% | 11 | 48.03 | Township |
| Louisburg township | 16 | 519 | 540 | -0.95% | 7 | 70.98 | Township |
| Fontana | 17 | 229 | 221 | 0.88% | 264 | 0.87 | City |
| Hillsdale | 18 | 180 | 284 | -2.17% | 118 | 1.53 | CDP |
| Bucyrus | 19 | 67 | 269 | -10.67% | 34 | 2 | CDP |
| Somerset | 20 | 64 | 128 | 6.67% | 145 | 0.44 | CDP |
Paola is the largest city in Miami County, with a population of 5,795.
Somerset is the smallest city in Miami County.
There are 20 cities in Miami County, Kansas.