In 2020, Gregory County, SD had a population of 4.19k people with a median age of 45.5 and a median household income of $44,706. Between 2019 and 2020 the population of Gregory County, SD grew from 4,186 to 4,193, a 0.167% increase and its median household income grew from $43,438 to $44,706, a 2.92% increase.
The 5 largest ethnic groups in Gregory County, SD are White (Non-Hispanic) (87.5%), American Indian & Alaska Native (Non-Hispanic) (7.35%), Two+ (Non-Hispanic) (3.15%), Other (Hispanic) (1.38%), and White (Hispanic) (0.668%).
None of the households in Gregory 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.
99.9% of the residents in Gregory County, SD are U.S. citizens.
In 2020, the median property value in Gregory County, SD was $97,300, and the homeownership rate was 74.3%. Most people in Gregory County, SD drove alone to work, and the average commute time was 15.4 minutes. The average car ownership in Gregory County, SD was 2 cars per household.