In the year of 2023, Sullivan's Island, SC had a population of 2.13k people with a median age of 52.9 and a median household income of $179,614. Between 2022 and 2023 the population of Sullivan's Island, SC declined from 2,317 to 2,127, a −8.2% decrease and its median household income grew from $171,838 to $179,614, a 4.53% increase.
The 5 largest ethnic groups in Sullivan's Island, SC are White (Non-Hispanic) (97%), White (Hispanic) (1.88%), Two Races Excluding Other, & Three or More Races (Non-Hispanic) (0.564%), Asian (Non-Hispanic) (0.376%), and Two Races Including Other (Hispanic) (0.188%).
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.
99.2% of the residents in Sullivan's Island, SC are U.S. citizens.
In 2023, the median property value in Sullivan's Island, SC was $2M, and the homeownership rate was 84.6%.
Most people in Sullivan's Island, SC drove alone to work, and the average commute time was 17.3 minutes. The average car ownership in Sullivan's Island, SC was 3 cars per household.