In 2020, Clay County, SD had a population of 14.1k people with a median age of 25.2 and a median household income of $51,447. Between 2019 and 2020 the population of Clay County, SD grew from 13,957 to 14,076, a 0.853% increase and its median household income grew from $50,724 to $51,447, a 1.43% increase.
The 5 largest ethnic groups in Clay County, SD are White (Non-Hispanic) (86.6%), American Indian & Alaska Native (Non-Hispanic) (3.61%), Asian (Non-Hispanic) (2.98%), Black or African American (Non-Hispanic) (1.73%), and Two+ (Non-Hispanic) (1.65%).
None of the households in Clay 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.
96.6% of the residents in Clay County, SD are U.S. citizens.
The largest universities in Clay County, SD are University of South Dakota (2,296 degrees awarded in 2020).
In 2020, the median property value in Clay County, SD was $168,100, and the homeownership rate was 53.8%. Most people in Clay County, SD drove alone to work, and the average commute time was 16 minutes. The average car ownership in Clay County, SD was 2 cars per household.