In 2022, Lyman County, SD had a population of 3.72k people with a median age of N/A and a median household income of $60,284. Between 2021 and 2022 the population of Lyman County, SD declined from 3,746 to 3,719, a −0.721% decrease and its median household income grew from $55,977 to $60,284, a 7.69% increase.
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None of the households in Lyman County, SD reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
99.1% of the residents in Lyman County, SD are U.S. citizens.
In 2022, the median property value in Lyman County, SD was $132,100, and the homeownership rate was 66.9%.
Lyman County, SD borders Brule County, SD, Buffalo County, SD, Charles Mix County, SD, Gregory County, SD, Hughes County, SD, Hyde County, SD, Jones County, SD, Mellette County, SD, Stanley County, SD, and Tripp County, SD.