There are 21 cities in Lake 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) |
|---|---|---|---|---|---|---|---|
| Madison | 1 | South Dakota | 6,068 | 6,159 | -0.38% | 1,315 | 4.62 |
| Dell Rapids | 2 | South Dakota | 3,825 | 3,995 | -1.11% | 1,697 | 2.25 |
| Volga | 3 | South Dakota | 2,416 | 2,111 | 3.25% | 2,112 | 1.14 |
| Salem | 4 | South Dakota | 1,336 | 1,331 | 0.07% | 1,069 | 1.25 |
| Arlington | 5 | South Dakota | 930 | 920 | 0.22% | 541 | 1.72 |
| Lake Madison | 6 | South Dakota | 838 | 811 | -0.71% | 178 | 4.72 |
| Colton | 7 | South Dakota | 688 | 736 | -1.71% | 981 | 0.70 |
| Colman | 8 | South Dakota | 661 | 633 | 1.07% | 351 | 1.88 |
| Lake Poinsett | 9 | South Dakota | 396 | 480 | -5.04% | 81 | 4.89 |
| Chester | 10 | South Dakota | 189 | 285 | -11.27% | 232 | 0.82 |
| Wentworth | 11 | South Dakota | 172 | 180 | -1.15% | 677 | 0.25 |
| Ramona | 12 | South Dakota | 163 | 161 | 0% | 595 | 0.27 |
| Brant Lake South | 13 | South Dakota | 156 | 290 | -17.46% | 297 | 0.53 |
| Oldham | 14 | South Dakota | 118 | 121 | -0.84% | 480 | 0.25 |
| Golden View Colony | 15 | South Dakota | 103 | 102 | -1.91% | 107 | 0.96 |
| Spring Lake Colony | 16 | South Dakota | 82 | 0 | 34.43% | 288 | 0.28 |
| Brant Lake | 17 | South Dakota | 55 | 57 | -1.79% | 355 | 0.15 |
| Nunda | 18 | South Dakota | 47 | 47 | 0% | 47 | 1.01 |
| Winfred | 19 | South Dakota | 36 | 68 | -12.2% | 36 | 1 |
| Shannon Colony | 20 | South Dakota | 27 | 27 | 0% | 107 | 0.25 |
| Hetland | 21 | South Dakota | 18 | 18 | 0% | 158 | 0.11 |
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.
Madison is the largest city in Lake County.
Hetland is the smallest city in Lake County.
There are 21 cities in Lake County, South Dakota.