St. Johns Lake Johns Island SC Homes & Real Estate For Sale MLS Listings Data: St. Johns LakeTotal Listings:4Average Price:$710,591Highest Listing Price:$798,000Average Days On Market:46Houses For Sale St. Johns Lake subdivision Johns Island SC. MLS real estate listings for sale in St. Johns Lake Johns Island SC by price, street, age, list date, bedrooms & more St. Johns Lake Johns Island SC. Currently, St. Johns Lake in Johns Island SCÂ has a total of four listings on the local MLS for sale with an average price point of $710,591, the max being $798,000 and the lowest priced house $569,465. The neighborhood of St. Johns Lake subdivision in Johns Island SC has an average house size of 3,017 sq ft and the average days on the market in this community is 46. 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 Saving Subscribe Unsubscribe Loading...