City | Rank | 2026 Pop.↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Sioux Falls | 1 | 217,856 | 193,453 | 1.92% | 2,577 | 85 | City |
| Brandon | 2 | 11,265 | 11,041 | -0.36% | 1,846 | 6 | City |
| Dell Rapids | 3 | 3,815 | 3,980 | -0.96% | 1,693 | 2 | City |
| Hartford | 4 | 3,698 | 3,355 | 1.73% | 988 | 4 | City |
| Crooks | 5 | 1,416 | 1,363 | 0.07% | 1,097 | 1 | City |
| Baltic | 6 | 1,365 | 1,244 | 1.56% | 1,850 | 1 | City |
| Garretson | 7 | 1,161 | 1,221 | -1.11% | 797 | 1 | City |
| Valley Springs | 8 | 888 | 879 | -0.11% | 902 | 1 | City |
| Colton | 9 | 676 | 736 | -1.6% | 964 | 1 | City |
| Humboldt | 10 | 567 | 578 | -0.35% | 916 | 1 | Town |
Sioux Falls is the largest city in Minnehaha County, with a population of 217,856.
Humboldt is the smallest city in Minnehaha County, with a population of 567.
There are 10 cities in Minnehaha County, South Dakota.