There are currently 194 properties with a median home value in Port Lavaca, TX 77979 of $166,200. The median list price per square foot in Port Lavaca, TX 77979 is $128. Of the total homes in Port Lavaca, TX 77979 98% are for sale, 2% are for rent, and 25% are single family homes. Port Lavaca, TX 77979 represents 0% of home addresses in the United States. Home values in Port Lavaca, TX 77979 are Infinity% above the median home value in the United States. Interested in knowing how much your home in Port Lavaca, TX 77979 is worth? The Homes.com Automated Valuation Model (AVM) provides an estimate of the home value of every on and off market property in the US.