Harbor Island Resort Saint Helena Island SC Homes & Real Estate For Sale MLS Listings Data: Harbor Island ResortTotal Listings:2Average Price:$433,250Highest Listing Price:$487,000Average Days On Market:99Houses For Sale Harbor Island Resort subdivision Saint Helena Island SC. MLS real estate listings for sale in Harbor Island Resort Saint Helena Island SC by price, street, age, list date, bedrooms & more Harbor Island Resort Saint Helena Island SC. Currently, Harbor Island Resort in Saint Helena Island SC has a total of two listings on the local MLS for sale with an average price point of $433,250, the max being $487,000 and the lowest priced house $379,500. The neighborhood of Harbor Island Resort subdivision in Saint Helena Island SC has an average house size of 1,075 sq ft and the average days on the market in this community is 99. 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 Switch to Grid View Switch to Map View Loading...