In 2021, Lake County, SD had a population of 11.4k people with a median age of 44.1 and a median household income of $67,297. Between 2020 and 2021 the population of Lake County, SD declined from 12,747 to 11,358, a −10.9% decrease and its median household income grew from $63,165 to $67,297, a 6.54% increase.
The 5 largest ethnic groups in Lake County, SD are White (Non-Hispanic) (92.6%), American Indian & Alaska Native (Non-Hispanic) (2.25%), Two+ (Non-Hispanic) (2.06%), White (Hispanic) (1.21%), and Other (Hispanic) (0.924%).
None of the households in Lake 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% of the residents in Lake County, SD are U.S. citizens.
The largest universities in Lake County, SD are Dakota State University (598 degrees awarded in 2021).
In 2021, the median property value in Lake County, SD was $172,700, and the homeownership rate was 72.3%.
Most people in Lake County, SD drove alone to work, and the average commute time was 17.4 minutes. The average car ownership in Lake County, SD was 2 cars per household.
Lake County, SD borders Brookings County, SD, Kingsbury County, SD, McCook County, SD, Miner County, SD, Minnehaha County, SD, and Moody County, SD.