44 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Wichita | 1 | 394,849 | 398,024 | -0.16% | 2,423 | 163 | City |
| Derby | 2 | 26,580 | 25,712 | 0.66% | 2,553 | 10 | City |
| Rockford | 3 | 25,230 | 23,522 | 1.59% | 647 | 39 | Township |
| Riverside | 4 | 13,779 | 13,166 | 1.33% | 919 | 15 | Township |
| Haysville | 5 | 11,262 | 11,277 | -0.03% | 2,401 | 5 | City |
| Kechi | 6 | 10,719 | 9,836 | 1.9% | 558 | 19 | Township |
| Bel Aire | 7 | 10,356 | 8,308 | 4.12% | 1,531 | 7 | City |
| Salem | 8 | 9,756 | 9,409 | 1.17% | 306 | 32 | Township |
| Maize | 9 | 7,460 | 5,814 | 4.61% | 761 | 10 | City |
| Mulvane | 10 | 7,358 | 6,302 | 2.95% | 1,744 | 4 | City |
| Valley Center | 11 | 7,336 | 7,363 | -0.07% | 1,032 | 7 | City |
| Goddard | 12 | 6,094 | 5,129 | 3.27% | 1,204 | 5 | City |
| Grant | 13 | 5,612 | 5,431 | 0.94% | 157 | 36 | Township |
| Valley Center | 14 | 4,923 | 4,820 | 0.72% | 136 | 36 | Township |
| Minneha | 15 | 3,589 | 3,371 | 2.16% | 374 | 10 | Township |
| Ninnescah | 16 | 3,453 | 3,395 | 0.76% | 96 | 36 | Township |
| Oaklawn-Sunview | 17 | 2,911 | 3,354 | -0.82% | 5,421 | 1 | CDP |
| Morton | 18 | 2,827 | 2,792 | 0.64% | 80 | 35 | Township |
| Union | 19 | 2,732 | 2,625 | 1.19% | 76 | 36 | Township |
| Clearwater | 20 | 2,629 | 2,661 | -0.23% | 1,341 | 2 | City |
| Kechi | 21 | 2,470 | 2,245 | 1.86% | 410 | 6 | City |
| Ohio | 22 | 2,249 | 2,140 | 1.63% | 62 | 36 | Township |
| Illinois | 23 | 2,211 | 2,027 | 2.79% | 62 | 35 | Township |
| Cheney | 24 | 2,146 | 2,181 | -0.33% | 926 | 2 | City |
| Garden Plain | 25 | 2,135 | 2,018 | 1.91% | 60 | 36 | Township |
| McConnell AFB | 26 | 2,096 | 1,898 | 1.06% | 505 | 4 | CDP |
| Sherman | 27 | 2,066 | 1,979 | 1.57% | 56 | 37 | Township |
| Afton | 28 | 1,697 | 1,561 | 2.72% | 48 | 35 | Township |
| Colwich | 29 | 1,445 | 1,464 | -0.28% | 1,082 | 1 | City |
| Payne | 30 | 1,431 | 1,305 | 2.65% | 55 | 26 | Township |
| Eagle | 31 | 1,271 | 1,193 | 1.84% | 36 | 36 | Township |
| Garden Plain | 32 | 954 | 948 | 0.1% | 846 | 1 | City |
| Andale | 33 | 922 | 937 | -0.32% | 1,550 | 1 | City |
| Mount Hope | 34 | 798 | 803 | -0.13% | 544 | 1 | City |
| Grand River | 35 | 744 | 682 | 2.9% | 21 | 35 | Township |
| Eastborough | 36 | 733 | 757 | -0.68% | 1,904 | 0 | City |
| Waco | 37 | 680 | 628 | 2.56% | 28 | 25 | Township |
| Bentley | 38 | 580 | 560 | 0.69% | 1,908 | 0 | City |
| Viola | 39 | 548 | 515 | 2.24% | 15 | 36 | Township |
| St. Marks | 40 | 134 | 34 | 7.2% | 137 | 1 | CDP |
| Greenwich | 41 | 110 | 62 | 6.8% | 866 | 0 | CDP |
| Viola | 42 | 109 | 113 | -0.91% | 665 | 0 | City |
| Valley Center | 43 | 25 | 28 | -3.85% | 1 | 36 | Township |
| Delano | 44 | 10 | 10 | 0% | 8 | 1 | Township |
Wichita is the largest city in Sedgwick County, with a population of 394,849.
Delano is the smallest city in Sedgwick County, with a population of 10.
There are 44 cities in Sedgwick County, Kansas.