8 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Topeka | 1 | 124,833 | 126,437 | -0.26% | 2,025 | 61.66 | City |
| Silver Lake | 2 | 1,296 | 1,343 | -0.69% | 2,302 | 0.56 | City |
| Auburn | 3 | 1,257 | 1,267 | -0.16% | 1,806 | 0.70 | City |
| Rossville | 4 | 1,076 | 1,110 | -0.65% | 1,942 | 0.55 | City |
| Lecompton | 5 | 597 | 592 | 0.17% | 340 | 1.76 | City |
| Tecumseh | 6 | 402 | 369 | 6.92% | 113 | 3.57 | CDP |
| Wakarusa | 7 | 239 | 223 | -0.42% | 48 | 4.96 | CDP |
| Willard | 8 | 75 | 74 | 0% | 688 | 0.11 | City |
Topeka is the largest city in Shawnee County, with a population of 124,833.
Willard is the smallest city in Shawnee County.
There are 8 cities in Shawnee County, Kansas.