In 2023, Jefferson, SD had a population of 717 people with a median age of 34 and a median household income of $81,149. Between 2022 and 2023 the population of Jefferson, SD grew from 631 to 717, a 13.6% increase and its median household income grew from $77,601 to $81,149, a 4.57% increase.
The 5 largest ethnic groups in Jefferson, SD are White (Non-Hispanic) (90.2%), American Indian & Alaska Native (Hispanic) (4.18%), Two Races Including Other (Non-Hispanic) (2.51%), Other (Hispanic) (1.67%), and Other (Non-Hispanic) (0.697%).
None of the households in Jefferson, 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.
96.1% of the residents in Jefferson, SD are U.S. citizens.
In 2023, the median property value in Jefferson, SD was $177,900, and the homeownership rate was 86.7%.
Most people in Jefferson, SD drove alone to work, and the average commute time was 24.4 minutes. The average car ownership in Jefferson, SD was 3 cars per household.