In 2020, Sanborn County, SD had a population of 2.37k people with a median age of 40.6 and a median household income of $55,398. Between 2019 and 2020 the population of Sanborn County, SD declined from 2,379 to 2,372, a −0.294% decrease and its median household income declined from $56,875 to $55,398, a −2.6% decrease.
The 5 largest ethnic groups in Sanborn County, SD are White (Non-Hispanic) (93.2%), White (Hispanic) (2.11%), Other (Hispanic) (2.07%), American Indian & Alaska Native (Non-Hispanic) (1.05%), and Two+ (Non-Hispanic) (1.01%).
None of the households in Sanborn 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 Sanborn County, SD are U.S. citizens.
In 2020, the median property value in Sanborn County, SD was $106,700, and the homeownership rate was 73.4%. Most people in Sanborn County, SD drove alone to work, and the average commute time was 20.8 minutes. The average car ownership in Sanborn County, SD was 2 cars per household.