In 2021, Union County, SD had a population of 16.4k people with a median age of 39.7 and a median household income of $80,238. Between 2020 and 2021 the population of Union County, SD grew from 15,659 to 16,424, a 4.89% increase and its median household income grew from $74,006 to $80,238, a 8.42% increase.
The 5 largest ethnic groups in Union County, SD are White (Non-Hispanic) (90.4%), Two+ (Non-Hispanic) (2.92%), White (Hispanic) (1.58%), Asian (Non-Hispanic) (1.46%), and Two+ (Hispanic) (1.31%).
None of the households in Union 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.
98.8% of the residents in Union County, SD are U.S. citizens.
In 2021, the median property value in Union County, SD was $221,300, and the homeownership rate was 69.6%.
Most people in Union County, SD drove alone to work, and the average commute time was 18.8 minutes. The average car ownership in Union County, SD was 2 cars per household.