SIOUX FALLS, S.D. (KELO.com) — Some local south Dakota counties are among the wealthiest in South Dakota.
That’s according to a new survey by Smart Assets.
The study assessed wealth by comparing counties across three categories: the amount of investment income residents receive, total per capita income and the median home value.
Union County ranks number one in the state with a wealth index of 37.2.
Lincoln County comes in at number two with an index of 22.27, while Minnehaha County ranks fourth at 22.16.


