Coldwell Banker Residential Brokerage can help you find San Marcos High School, San Marcos, TX homes for sale, condos and rentals. Refine your San Marcos High School real estate search results by price, property type, bedrooms, baths and other features. Need more information? View Coldwell Banker Residential Brokerage San Marcos 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 San Marcos, TX.