In 2023, Sully County, SD had a population of 1.48k people with a median age of 51.4 and a median household income of $70,250. Between 2022 and 2023 the population of Sully County, SD grew from 1,318 to 1,481, a 12.4% increase and its median household income grew from $66,875 to $70,250, a 5.05% increase.
The 5 largest ethnic groups in Sully County, SD are White (Non-Hispanic) (92.5%), Black or African American (Non-Hispanic) (5%), Two+ (Non-Hispanic) (1.96%), Other (Non-Hispanic) (0.54%), and White (Hispanic) (0%).
None of the households in Sully 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.
95.9% of the residents in Sully County, SD are U.S. citizens.
In 2023, the median property value in Sully County, SD was $198,700, and the homeownership rate was 76.1%.
Most people in Sully County, SD drove alone to work, and the average commute time was 16.6 minutes. The average car ownership in Sully County, SD was 3 cars per household.
Sully County, SD borders Dewey County, SD, Hughes County, SD, Hyde County, SD, Potter County, SD, and Stanley County, SD.