Matagorda County is in Coastal Prairie Middle Texas. Of the 254 counties in the Lone Star State, Matagorda County ranks 16th in terms of size (1,612 square miles). There is nearly 3,000 acres of beachfront homes and property for sale in Texas's Matagorda County based on recent Land Network data. The combined market value of farms, ranches, hunting land and other land for sale here is approximately $11 million. The average price of beachfront property for sale in Matagorda County was $3 million.