Real Estate Listings For Sale 29920-0000 zip code SC MLS Listings Data: 29920-0000Total Listings:2Average Price:$490,000Highest Listing Price:$800,000Average Days On Market:167 Homes For Sale 29920-0000 zip code Saint Helena Island SC. MLS real estate listings for sale in SC by price, street, age, subdivision, neighborhood, list date, bedrooms & more SC zip code 29920-0000. Currently, Saint Helena Island SC 29920-0000 has a total of two listings on the local MLS for sale with an average price point of $$490,000, the max being $$800,000 and the lowest priced house $$180,000 to purchase in the 29920-0000 zip code. Homes in the Saint Helena Island SC 29920-0000 have an average house size of 2,600 sq ft and the average days on the market in zip code 29920-0000 is 167 days. Please contact our team to list or sell your home, view or make an offer on one of the properties you see here updated every 5 mins in real-time. 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...