Real Estate Listings For Sale 29420 zip code SC MLS Listings Data: 29420Total Listings:5Average Price:$451,760Highest Listing Price:$694,000Average Days On Market:145Homes For Sale 29420 zip code Charleston SC. MLS real estate listings for sale in SC by price, street, age, subdivision, neighborhood, list date, bedrooms & more SC zip code 29420. Currently, Charleston SC 29420 has a total of five listings on the local MLS for sale with an average price point of $$451,760, the max being $$694,000 and the lowest priced house $$194,900 to purchase in the 29420 zip code. Homes in the Charleston SC 29420 have an average house size of 2,126 sq ft and the average days on the market in zip code 29420 is 145 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 Saving Subscribe Unsubscribe Loading...