In 2018, Lyman County, SD had a population of 3.87k people with a median age of 36 and a median household income of $53,263. Between 2017 and 2018 the population of Lyman County, SD declined from 3,882 to 3,869, a -0.335% decrease and its median household income grew from $47,113 to $53,263, a 13.1% increase.
The 5 largest ethnic groups in Lyman County, SD are White (Non-Hispanic) (56.1%), American Indian & Alaska Native (Non-Hispanic) (39.7%), White (Hispanic) (1.4%), Two+ (Non-Hispanic) (1.14%), and American Indian & Alaska Native (Hispanic) (0.879%). NaNk% of the people in Lyman County, SD speak a non-English language, and 100% are U.S. citizens.
The median property value in Lyman County, SD is $86,600, and the homeownership rate is 67.7%. Most people in Lyman County, SD commute by Drove Alone, and the average commute time is 12.3 minutes. The average car ownership in Lyman County, SD is 2 cars per household.