2 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Sharon Springs | 1 | 724 | 750 | -0.55% | 802 | 1 | City |
| Wallace | 2 | 44 | 46 | 0% | 109 | 0 | City |
Sharon Springs is the largest city in Wallace County, with a population of 724.
Wallace is the smallest city in Wallace County, with a population of 44.
There are 2 cities in Wallace County, Kansas.