In 2022, Marshall County, SD had a population of 4.36k people with a median age of 43.7 and a median household income of $74,018. Between 2021 and 2022 the population of Marshall County, SD declined from 4,373 to 4,363, a −0.229% decrease and its median household income grew from $69,236 to $74,018, a 6.91% increase.
The 5 largest ethnic groups in Marshall County, SD are White (Non-Hispanic) (82%), American Indian & Alaska Native (Non-Hispanic) (6.21%), Other (Hispanic) (3.25%), White (Hispanic) (3.12%), and Two+ (Non-Hispanic) (2.96%).
None of the households in Marshall 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.
97.6% of the residents in Marshall County, SD are U.S. citizens.
In 2022, the median property value in Marshall County, SD was $141,100, and the homeownership rate was 78.6%.
Most people in Marshall County, SD drove alone to work, and the average commute time was 17.8 minutes. The average car ownership in Marshall County, SD was 2 cars per household.
Marshall County, SD borders Richland County, ND, Sargent County, ND, Brown County, SD, Day County, SD, and Roberts County, SD.