Lyman County, county in South Dakota, United States. As of 2020 county had an estimated population of 3,797 inhabitants. The county was created 150 years ago in 1873. Its county seat is "Kennebec".
There are 0 city/town in Lyman County, SD.
Cities, Towns, Neighborhoods & Other Populated Places in Lyman County.
| City Name | Title | County | Population |
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