46 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Huron | 1 | 14,578 | 14,262 | 0.43% | 1,500 | 10 | City |
| Wolsey | 2 | 461 | 459 | 0% | 204 | 2 | Town |
| Clyde | 3 | 439 | 430 | 0.92% | 13 | 33 | Township |
| Theresa | 4 | 313 | 312 | 0% | 9 | 34 | Township |
| Valley | 5 | 255 | 252 | 0.39% | 7 | 35 | Township |
| Wessington | 6 | 199 | 198 | 0% | 526 | 0 | City |
| Clifton | 7 | 143 | 141 | 0% | 4 | 36 | Township |
| Cavour | 8 | 129 | 127 | 0% | 315 | 0 | Town |
| Logan | 9 | 125 | 123 | 0% | 4 | 36 | Township |
| Lake Byron | 10 | 124 | 122 | 0.81% | 4 | 33 | Township |
| Fairfield | 11 | 121 | 108 | 2.54% | 3 | 37 | Township |
| Grant | 12 | 114 | 113 | 0.88% | 3 | 36 | Township |
| Iowa | 13 | 111 | 110 | 0.91% | 3 | 36 | Township |
| Yale | 14 | 110 | 109 | 0% | 759 | 0 | Town |
| Richland | 15 | 108 | 105 | 1.89% | 3 | 36 | Township |
| Hitchcock | 16 | 106 | 106 | 0% | 388 | 0 | Town |
| Barrett | 17 | 106 | 105 | 0.95% | 3 | 36 | Township |
| Pearl Creek | 18 | 100 | 95 | 3.09% | 3 | 36 | Township |
| Dearborn | 19 | 99 | 98 | 1.02% | 3 | 35 | Township |
| Hartland | 20 | 95 | 90 | 3.26% | 3 | 36 | Township |
| Morningside | 21 | 91 | 73 | -1.09% | 177 | 1 | CDP |
| Foster | 22 | 91 | 91 | 0% | 3 | 36 | Township |
| Altoona | 23 | 90 | 89 | 1.12% | 3 | 36 | Township |
| Cavour | 24 | 87 | 87 | 0% | 2 | 36 | Township |
| Carlyle | 25 | 85 | 85 | 0% | 2 | 36 | Township |
| Vernon | 26 | 76 | 74 | 0% | 2 | 36 | Township |
| Liberty | 27 | 73 | 73 | 0% | 2 | 37 | Township |
| Milford | 28 | 69 | 69 | 0% | 2 | 36 | Township |
| Wolsey | 29 | 69 | 69 | 0% | 2 | 34 | Township |
| Shamrock Colony | 30 | 64 | 17 | 6.67% | 99 | 1 | CDP |
| Bonilla | 31 | 62 | 62 | 0% | 2 | 36 | Township |
| Pleasant View | 32 | 59 | 59 | 0% | 2 | 36 | Township |
| Kellogg | 33 | 55 | 55 | 0% | 2 | 36 | Township |
| Banner | 34 | 48 | 48 | 0% | 1 | 35 | Township |
| Belle Prairie | 35 | 47 | 47 | 0% | 1 | 36 | Township |
| Wessington | 36 | 46 | 46 | 0% | 1 | 36 | Township |
| Broadland | 37 | 45 | 45 | 0% | 1 | 36 | Township |
| Nance | 38 | 45 | 39 | 4.65% | 1 | 36 | Township |
| Whiteside | 39 | 38 | 38 | 0% | 1 | 37 | Township |
| Burr Oak | 40 | 36 | 36 | 0% | 1 | 36 | Township |
| Huron | 41 | 34 | 33 | 0% | 1 | 36 | Township |
| Sand Creek | 42 | 32 | 32 | 0% | 1 | 36 | Township |
| Broadland | 43 | 28 | 28 | 0% | 28 | 1 | Town |
| Virgil | 44 | 24 | 24 | 0% | 24 | 1 | Town |
| Bancroft | 45 | 13 | 12 | 0% | 56 | 0 | Town |
| Virgil | 46 | 6 | 5 | 20% | 0.00 | 36 | Township |
Huron is the largest city in Beadle County, with a population of 14,578.
Virgil is the smallest city in Beadle County, with a population of 6.
There are 46 cities in Beadle County, South Dakota.