None of the households in Sullivan's Island, SC 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 Sullivan's Island, SC are U.S. citizens.
In 2024, the median property value in Sullivan's Island, SC was $2M, and the homeownership rate was 85.3%.
Most people in Sullivan's Island, SC drove alone to work, and the average commute time was 17.6 minutes. The average car ownership in Sullivan's Island, SC was 3 cars per household.