None of the households in Sinai, 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.
99.1% of the residents in Sinai, SD are U.S. citizens.
In 2024, the median property value in Sinai, SD was $89,300, and the homeownership rate was 66.7%.
Most people in Sinai, SD drove alone to work, and the average commute time was 29.3 minutes. The average car ownership in Sinai, SD was 3 cars per household.