None of the households in Gann Valley, 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 Gann Valley, SD are U.S. citizens.
In 2014, the median property value in Gann Valley, SD was $9,999, and the homeownership rate was 100%.