There are 26 cities in Brown County, South Dakota.
Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)
City | Rank | State | 2024 Population | 2020 Census | Annual Change | Density (mi²) | Area (mi²) |
|---|---|---|---|---|---|---|---|
| Aberdeen | 1 | South Dakota | 28,002 | 28,432 | -0.38% | 1,695 | 16.52 |
| Groton | 2 | South Dakota | 1,344 | 1,386 | -0.81% | 768 | 1.75 |
| Ellendale | 3 | North Dakota | 1,085 | 1,117 | -0.73% | 766 | 1.42 |
| Ipswich | 4 | South Dakota | 952 | 931 | 0.53% | 710 | 1.34 |
| Mina | 5 | South Dakota | 916 | 718 | 5.77% | 242 | 3.78 |
| Warner | 6 | South Dakota | 456 | 482 | -1.51% | 1,634 | 0.28 |
| Prairiewood Village | 7 | South Dakota | 384 | 438 | -3.28% | 651 | 0.59 |
| Spring Creek Colony | 8 | South Dakota | 250 | 0 | 33.69% | 842 | 0.30 |
| Frederick | 9 | South Dakota | 203 | 213 | -1.46% | 150 | 1.35 |
| Mellette | 10 | South Dakota | 194 | 198 | -0.51% | 758 | 0.26 |
| Hecla | 11 | South Dakota | 187 | 195 | -1.06% | 544 | 0.34 |
| Columbia | 12 | South Dakota | 155 | 157 | -0.64% | 102 | 1.52 |
| Conde | 13 | South Dakota | 138 | 144 | -1.43% | 245 | 0.56 |
| Bath Corner | 14 | South Dakota | 121 | 17 | 27.37% | 691 | 0.17 |
| Claremont | 15 | South Dakota | 105 | 108 | -0.94% | 418 | 0.25 |
| Westport | 16 | South Dakota | 85 | 89 | -1.16% | 362 | 0.23 |
| Andover | 17 | South Dakota | 68 | 68 | 0% | 252 | 0.27 |
| Stratford | 18 | South Dakota | 57 | 59 | -1.72% | 228 | 0.25 |
| Forbes | 19 | North Dakota | 37 | 39 | -2.63% | 153 | 0.24 |
| Grassland Colony | 20 | South Dakota | 36 | 0 | 33.33% | 85 | 0.43 |
| Monango | 21 | North Dakota | 28 | 30 | -3.45% | 74 | 0.38 |
| Wetonka | 22 | South Dakota | 12 | 14 | -7.69% | 49 | 0.25 |
| Ferney | 23 | South Dakota | 10 | 37 | -37.5% | 10 | 1 |
| Verdon | 24 | South Dakota | 7 | 7 | 0% | 28 | 0.25 |
| Bath | 25 | South Dakota | 0 | 217 | 0% | 0 | 0.29 |
| Mansfield | 26 | South Dakota | 0 | 91 | 0% | 0 | 2.41 |
Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.
Aberdeen is the largest city in Brown County.
Mansfield is the smallest city in Brown County.
There are 26 cities in Brown County, South Dakota.