In 2020, Ziebach County, SD had a population of 2.77k people with a median age of 34 and a median household income of $36,615. Between 2019 and 2020 the population of Ziebach County, SD declined from 2,791 to 2,767, a −0.86% decrease and its median household income declined from $37,400 to $36,615, a −2.1% decrease.
The 5 largest ethnic groups in Ziebach County, SD are American Indian & Alaska Native (Non-Hispanic) (72%), White (Non-Hispanic) (23.9%), Two+ (Hispanic) (2.64%), Two+ (Non-Hispanic) (0.687%), and American Indian & Alaska Native (Hispanic) (0.361%).
None of the households in Ziebach 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.
99.7% of the residents in Ziebach County, SD are U.S. citizens.
In 2020, the median property value in Ziebach County, SD was $68,800, and the homeownership rate was 55.6%.
Most people in Ziebach County, SD drove alone to work, and the average commute time was 24.5 minutes. The average car ownership in Ziebach County, SD was 2 cars per household.