In 2023, Isabel, SD had a population of 182 people with a median age of 38.1 and a median household income of $70,625. Between 2022 and 2023 the population of Isabel, SD declined from 188 to 182, a −3.19% decrease and its median household income grew from $53,571 to $70,625, a 31.8% increase.
The 5 largest ethnic groups in Isabel, SD are White (Non-Hispanic) (79.1%), American Indian & Alaska Native (Non-Hispanic) (20.3%), Black or African American (Non-Hispanic) (0.549%), Asian (Non-Hispanic) (0%), and Native Hawaiian & Other Pacific Islander (Non-Hispanic) (0%).
None of the households in Isabel, 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.
100% of the residents in Isabel, SD are U.S. citizens.
In 2023, the median property value in Isabel, SD was $49,300, and the homeownership rate was 56%.
Most people in Isabel, SD drove alone to work, and the average commute time was 13.5 minutes. The average car ownership in Isabel, SD was 1 car per household.