In 2023, Castlewood, SD had a population of 756 people with a median age of 36.9 and a median household income of $87,768. Between 2022 and 2023 the population of Castlewood, SD grew from 690 to 756, a 9.57% increase and its median household income grew from $78,750 to $87,768, a 11.5% increase.
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None of the households in Castlewood, 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.
99.3% of the residents in Castlewood, SD are U.S. citizens.
In 2023, the median property value in Castlewood, SD was $178,600, and the homeownership rate was 83.8%.
Most people in Castlewood, SD drove alone to work, and the average commute time was 24.4 minutes. The average car ownership in Castlewood, SD was 2 cars per household.