Lyman County, county in South Dakota, United States. As of 2020 county had an estimated population of 3,797 inhabitants. The county was created 149 years ago in 1873. Its county seat is "Kennebec".
There are 1 city/town in Lyman County, SD. The largest city of Lyman County is Oacoma with a population of 70.
Oacoma, township in Lyman County, South Dakota
Cities, Towns, Neighborhoods & Other Populated Places in Lyman County.
| City Name | Title | County | Population |
|---|---|---|---|
| Oacoma | Township in Lyman County, South Dakota | Lyman | 70 |
