In 2017, Lake County, SD had a population of 12.4k people with a median age of 42 and a median household income of $58,467. Between 2016 and 2017 the population of Lake County, SD grew from 12,331 to 12,350, a 0.154% increase and its median household income grew from $57,239 to $58,467, a 2.15% increase.
The 5 largest ethnic groups in Lake County, SD are White (Non-Hispanic) (93.8%), Asian (Non-Hispanic) (1.9%), White (Hispanic) (1.83%), Two or More Races (Non-Hispanic) (1.3%), and Black or African American (Non-Hispanic) (0.551%). N/A% of the people in Lake County, SD speak a non-English language, and 99.3% are U.S. citizens.
The largest universities in Lake County, SD are Dakota State University (486 degrees awarded in 2017).
The median property value in Lake County, SD is $155,200, and the homeownership rate is 74.5%. Most people in Lake County, SD commute by Drove Alone, and the average commute time is 14.6 minutes. The average car ownership in Lake County, SD is 2 cars per household.