| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Hutchinson | 1 | 39,479 | 39,994 | -0.29% | 1,553 | 25 | City |
| South Hutchinson | 2 | 2,512 | 2,524 | -0.16% | 884 | 3 | City |
| Buhler | 3 | 1,317 | 1,324 | -0.23% | 1,839 | 1 | City |
| Haven | 4 | 1,168 | 1,165 | -0.09% | 1,503 | 1 | City |
| Nickerson | 5 | 1,047 | 1,066 | -0.38% | 808 | 1 | City |
| Pretty Prairie | 6 | 649 | 661 | -0.46% | 1,127 | 1 | City |
| Arlington | 7 | 427 | 435 | -0.7% | 346 | 1 | City |
| The Highlands | 8 | 352 | 349 | 0% | 343 | 1 | City |
| Turon | 9 | 307 | 307 | -0.32% | 690 | 0 | City |
| Sylvia | 10 | 211 | 212 | -0.47% | 730 | 0 | City |
| Partridge | 11 | 210 | 210 | 0% | 677 | 0 | City |
| Plevna | 12 | 82 | 84 | -1.2% | 364 | 0 | City |
| Abbyville | 13 | 80 | 82 | -1.23% | 299 | 0 | City |
| Willowbrook | 14 | 72 | 71 | 0% | 244 | 0 | City |
Hutchinson is the largest city in Reno County, with a population of 39,479.
Willowbrook is the smallest city in Reno County, with a population of 72.
There are 14 cities in Reno County, Kansas.