24 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Ortonville | 1 | 1,945 | 2,020 | -0.61% | 464 | 4 | City |
| Clinton | 2 | 982 | 974 | 0.31% | 30 | 33 | Township |
| Barry | 3 | 562 | 553 | 0.36% | 16 | 34 | Township |
| Graceville | 4 | 506 | 520 | -0.39% | 874 | 1 | City |
| Clinton | 5 | 364 | 384 | -0.82% | 380 | 1 | City |
| Big Stone | 6 | 290 | 291 | 0% | 9 | 31 | Township |
| Prior | 7 | 276 | 277 | 0% | 6 | 45 | Township |
| Clinton | 8 | 218 | 236 | -2.24% | 6 | 36 | Township |
| Beardsley | 9 | 202 | 213 | -0.98% | 430 | 0 | City |
| Graceville | 10 | 169 | 172 | -0.59% | 5 | 33 | Township |
| Akron | 11 | 151 | 156 | -0.66% | 3 | 49 | Township |
| Odessa | 12 | 144 | 142 | 0.7% | 4 | 36 | Township |
| Foster | 13 | 118 | 118 | 0% | 4 | 30 | Township |
| Almond | 14 | 105 | 108 | -0.94% | 3 | 33 | Township |
| Odessa | 15 | 102 | 104 | 0% | 106 | 1 | City |
| Ortonville | 16 | 88 | 88 | 0% | 7 | 13 | Township |
| Artichoke | 17 | 86 | 89 | -1.15% | 3 | 32 | Township |
| Malta | 18 | 84 | 80 | 2.44% | 2 | 36 | Township |
| Moonshine | 19 | 82 | 84 | -1.2% | 2 | 37 | Township |
| Otrey | 20 | 72 | 70 | 1.41% | 2 | 34 | Township |
| Toqua | 21 | 44 | 45 | 0% | 1 | 34 | Township |
| Correll | 22 | 26 | 28 | 0% | 68 | 0 | City |
| Johnson | 23 | 23 | 25 | 0% | 74 | 0 | City |
| Barry | 24 | 14 | 14 | 0% | 55 | 0 | City |
Ortonville is the largest city in Big Stone County, with a population of 1,945.
Barry is the smallest city in Big Stone County, with a population of 14.
There are 24 cities in Big Stone County, Minnesota.