41 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Wichita | 1 | 401,722 | 398,067 | 0.18% | 2,434 | 165 | City |
| Derby | 2 | 26,826 | 25,715 | 0.83% | 2,415 | 11 | City |
| Rockford | 3 | 25,046 | 23,521 | 1.07% | 642 | 39 | Township |
| Riverside | 4 | 13,777 | 13,164 | 1.2% | 919 | 15 | Township |
| Haysville | 5 | 11,438 | 11,276 | 0.28% | 2,439 | 5 | City |
| Kechi | 6 | 10,854 | 9,840 | 2.28% | 565 | 19 | Township |
| Bel Aire | 7 | 10,505 | 8,308 | 4.36% | 1,492 | 7 | City |
| Salem | 8 | 9,800 | 9,409 | 1.21% | 307 | 32 | Township |
| Park City | 9 | 9,287 | 8,402 | 1.94% | 908 | 10 | City |
| Valley Center | 10 | 7,429 | 7,364 | 0.18% | 917 | 8 | City |
| Maize | 11 | 7,370 | 5,814 | 4.41% | 733 | 10 | City |
| Mulvane | 12 | 7,195 | 6,299 | 2.55% | 1,705 | 4 | City |
| Goddard | 13 | 6,227 | 5,135 | 3.63% | 1,104 | 6 | City |
| Grant | 14 | 5,642 | 5,436 | 0.95% | 158 | 36 | Township |
| Valley Center | 15 | 4,947 | 4,818 | 0.82% | 137 | 36 | Township |
| Minneha | 16 | 3,531 | 3,366 | 1.23% | 368 | 10 | Township |
| Ninnescah | 17 | 3,531 | 3,395 | 1.7% | 98 | 36 | Township |
| Morton | 18 | 2,834 | 2,791 | 0.6% | 80 | 35 | Township |
| Union | 19 | 2,724 | 2,623 | 0.89% | 76 | 36 | Township |
| Clearwater | 20 | 2,706 | 2,661 | 0.33% | 1,380 | 2 | City |
| Kechi | 21 | 2,423 | 2,245 | 1.47% | 402 | 6 | City |
| Ohio | 22 | 2,244 | 2,140 | 1.31% | 62 | 36 | Township |
| Illinois | 23 | 2,176 | 2,028 | 1.78% | 61 | 35 | Township |
| Cheney | 24 | 2,172 | 2,180 | -0.09% | 937 | 2 | City |
| Garden Plain | 25 | 2,162 | 2,014 | 2.51% | 61 | 36 | Township |
| Sherman | 26 | 2,045 | 1,980 | 0.84% | 55 | 37 | Township |
| Afton | 27 | 1,669 | 1,561 | 1.71% | 47 | 35 | Township |
| Colwich | 28 | 1,451 | 1,463 | -0.21% | 1,087 | 1 | City |
| Payne | 29 | 1,389 | 1,301 | 1.09% | 54 | 26 | Township |
| Eagle | 30 | 1,255 | 1,192 | 1.05% | 35 | 36 | Township |
| Garden Plain | 31 | 997 | 946 | 1.01% | 885 | 1 | City |
| Andale | 32 | 927 | 937 | -0.22% | 1,558 | 1 | City |
| Mount Hope | 33 | 803 | 807 | -0.12% | 547 | 1 | City |
| Eastborough | 34 | 739 | 757 | -0.54% | 1,919 | 0 | City |
| Grand River | 35 | 733 | 682 | 1.95% | 21 | 35 | Township |
| Waco | 36 | 665 | 623 | 1.68% | 27 | 25 | Township |
| Bentley | 37 | 577 | 559 | 0.52% | 1,898 | 0 | City |
| Viola | 38 | 544 | 522 | 1.12% | 15 | 36 | Township |
| Viola | 39 | 112 | 117 | -0.88% | 683 | 0 | City |
| Valley Center | 40 | 26 | 27 | 0% | 1 | 36 | Township |
| Delano | 41 | 11 | 11 | 0% | 9 | 1 | Township |
Wichita is the largest city in Sedgwick County, with a population of 401,722.
Delano is the smallest city in Sedgwick County, with a population of 11.
There are 41 cities in Sedgwick County, Kansas.