22 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Wichita | 1 | 394,849 | 398,024 | -0.16% | 2,423 | 162.94 | City |
| Derby | 2 | 26,580 | 25,712 | 0.66% | 2,553 | 10.41 | City |
| Haysville | 3 | 11,262 | 11,277 | -0.03% | 2,401 | 4.69 | City |
| Bel Aire | 4 | 10,356 | 8,308 | 4.12% | 1,531 | 6.76 | City |
| Maize | 5 | 7,460 | 5,814 | 4.61% | 761 | 9.80 | City |
| Mulvane | 6 | 7,358 | 6,302 | 2.95% | 1,744 | 4.22 | City |
| Valley Center | 7 | 7,336 | 7,363 | -0.07% | 1,032 | 7.11 | City |
| Goddard | 8 | 6,094 | 5,129 | 3.27% | 1,204 | 5.06 | City |
| Oaklawn-Sunview | 9 | 2,911 | 3,354 | -0.82% | 5,421 | 0.54 | CDP |
| Clearwater | 10 | 2,629 | 2,661 | -0.23% | 1,341 | 1.96 | City |
| Kechi | 11 | 2,470 | 2,245 | 1.86% | 410 | 6.03 | City |
| Cheney | 12 | 2,146 | 2,181 | -0.33% | 926 | 2.32 | City |
| McConnell AFB | 13 | 2,096 | 1,898 | 1.06% | 505 | 4.15 | CDP |
| Colwich | 14 | 1,445 | 1,464 | -0.28% | 1,082 | 1.33 | City |
| Garden Plain | 15 | 954 | 948 | 0.1% | 846 | 1.13 | City |
| Andale | 16 | 922 | 937 | -0.32% | 1,550 | 0.59 | City |
| Mount Hope | 17 | 798 | 803 | -0.13% | 544 | 1.47 | City |
| Eastborough | 18 | 733 | 757 | -0.68% | 1,904 | 0.39 | City |
| Bentley | 19 | 580 | 560 | 0.69% | 1,908 | 0.30 | City |
| St. Marks | 20 | 134 | 34 | 7.2% | 137 | 0.98 | CDP |
| Greenwich | 21 | 110 | 62 | 6.8% | 866 | 0.13 | CDP |
| Viola | 22 | 109 | 113 | -0.91% | 665 | 0.16 | City |
Wichita is the largest city in Sedgwick County, with a population of 394,849.
Viola is the smallest city in Sedgwick County.
There are 22 cities in Sedgwick County, Kansas.