24 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Ortonville | 1 | 1,957 | 2,020 | -0.66% | 467 | 4 | City |
| Clinton | 2 | 979 | 974 | 0.31% | 29 | 33 | Township |
| Barry | 3 | 560 | 553 | 0.36% | 16 | 34 | Township |
| Graceville | 4 | 508 | 520 | -0.59% | 877 | 1 | City |
| Clinton | 5 | 367 | 384 | -1.08% | 383 | 1 | City |
| Big Stone | 6 | 290 | 291 | 0% | 9 | 31 | Township |
| Prior | 7 | 276 | 277 | 0% | 6 | 45 | Township |
| Clinton | 8 | 223 | 236 | -2.19% | 6 | 36 | Township |
| Beardsley | 9 | 204 | 213 | -0.97% | 434 | 0 | City |
| Graceville | 10 | 170 | 172 | -0.58% | 5 | 33 | Township |
| Akron | 11 | 152 | 156 | -0.65% | 3 | 49 | Township |
| Odessa | 12 | 143 | 142 | 0.7% | 4 | 36 | Township |
| Foster | 13 | 118 | 118 | 0% | 4 | 30 | Township |
| Almond | 14 | 106 | 108 | -0.93% | 3 | 33 | Township |
| Odessa | 15 | 102 | 104 | -0.97% | 106 | 1 | City |
| Ortonville | 16 | 88 | 88 | 0% | 7 | 13 | Township |
| Artichoke | 17 | 87 | 89 | -1.14% | 3 | 32 | Township |
| Moonshine | 18 | 83 | 84 | -1.19% | 2 | 37 | Township |
| Malta | 19 | 82 | 80 | 2.5% | 2 | 36 | Township |
| Otrey | 20 | 71 | 70 | 1.43% | 2 | 34 | Township |
| Toqua | 21 | 44 | 45 | 0% | 1 | 34 | Township |
| Correll | 22 | 26 | 28 | -3.7% | 68 | 0 | City |
| Johnson | 23 | 23 | 25 | -4.17% | 74 | 0 | City |
| Barry | 24 | 14 | 14 | 0% | 55 | 0 | City |
Ortonville is the largest city in Big Stone County, with a population of 1,957.
Barry is the smallest city in Big Stone County, with a population of 14.
There are 24 cities in Big Stone County, Minnesota.