Coldwell Banker Residential Brokerage can help you find St. Johns High School, Johns Island, SC homes for sale and condos. Refine your St. Johns High School real estate search results by price, property type, bedrooms, baths and other features. Need more information? View Coldwell Banker Residential Brokerage Johns Island real estate agents or offices and let us help you find the perfect property. We also have area guides that show more information about properties in Johns Island, SC.