In 2023, Lake Madison, SD had a population of 885 people with a median age of 61.3 and a median household income of $116,648. Between 2022 and 2023 the population of Lake Madison, SD grew from 850 to 885, a 4.12% increase and its median household income grew from $114,250 to $116,648, a 2.1% increase.
The 5 largest ethnic groups in Lake Madison, SD are White (Non-Hispanic) (80%), Two Races Excluding Other, & Three or More Races (Non-Hispanic) (9.72%), American Indian & Alaska Native (Non-Hispanic) (8.59%), Two Races Including Other (Non-Hispanic) (1.69%), and Black or African American (Non-Hispanic) (0%).
None of the households in Lake Madison, 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% of the residents in Lake Madison, SD are U.S. citizens.
In 2023, the median property value in Lake Madison, SD was $496,600, and the homeownership rate was 88.4%.
Most people in Lake Madison, SD drove alone to work, and the average commute time was 25.6 minutes. The average car ownership in Lake Madison, SD was 2 cars per household.