In 2023, Grenville, SD had a population of 70 people with a median age of 57.7 and a median household income of $83,125. Between 2022 and 2023 the population of Grenville, SD grew from 68 to 70, a 2.94% increase and its median household income declined from $85,104 to $83,125, a −2.33% decrease.
The 5 largest ethnic groups in Grenville, SD are White (Non-Hispanic) (97.1%), Other (Hispanic) (2.86%), White (Hispanic) (0%), Black or African American (Non-Hispanic) (0%), and Black or African American (Hispanic) (0%).
None of the households in Grenville, 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 Grenville, SD are U.S. citizens.
In 2023, the median property value in Grenville, SD was $43,100, and the homeownership rate was 94.3%.
Most people in Grenville, SD drove alone to work, and the average commute time was 12.9 minutes. The average car ownership in Grenville, SD was 4 cars per household.