| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Huron | 1 | 14,681 | 14,263 | 0.51% | 1,511 | 10 | City |
| Wolsey | 2 | 472 | 459 | 0.21% | 208 | 2 | Town |
| Wessington | 3 | 201 | 196 | 0% | 532 | 0 | City |
| Cavour | 4 | 131 | 126 | 0% | 320 | 0 | Town |
| Hitchcock | 5 | 111 | 109 | 0% | 407 | 0 | Town |
| Yale | 6 | 107 | 105 | 0% | 738 | 0 | Town |
| Broadland | 7 | 27 | 27 | 0% | 27 | 1 | Town |
| Virgil | 8 | 25 | 25 | 0% | 25 | 1 | Town |
| Bancroft | 9 | 13 | 12 | 0% | 56 | 0 | Town |
Huron is the largest city in Beadle County, with a population of 14,681.
Bancroft is the smallest city in Beadle County, with a population of 13.
There are 9 cities in Beadle County, South Dakota.