Sullivans Island Sullivans Island SC Homes & Real Estate For Sale MLS Listings Data: Sullivans IslandTotal Listings:23Average Price:$5,932,652Highest Listing Price:$15,795,000Average Days On Market:191Houses For Sale Sullivans Island subdivision Sullivans Island SC. MLS real estate listings for sale in Sullivans Island Sullivans Island SC by price, street, age, list date, bedrooms & more Sullivans Island Sullivans Island SC. Currently, Sullivans Island in Sullivans Island SC has a total of twenty-three listings on the local MLS for sale with an average price point of $5,932,652, the max being $15,795,000 and the lowest priced house $899,000. The neighborhood of Sullivans Island subdivision in Sullivans Island SC has an average house size of 4,088 sq ft and the average days on the market in this community is 191. RelativeSort by Year Built: low to highSort by Year Built: high to lowSort by price: low to highSort by price: high to lowSort from oldest to newestSort from newest to oldestSort by status: active to under contractSort by status: under contract to active Filters Saving Subscribe Unsubscribe Loading...