Matagorda County is a county located in the U.S. state of Texas. As of the 2010 census, the population was 36,702. Its county seat is Bay City, not to be confused with the larger Baytown in Harris and Chambers Counties. Matagorda County is named for the canebrakes that once grew along the coast (matagorda is a Spanish word meaning “thick bush”).
According to the U.S. Census Bureau, the county has a total area of 1,613 square miles (4,180 km2), of which 1,100 square miles (2,800 km2) are land and 512 square miles (1,330 km2) (32%) are covered by water. The water area includes Matagorda Bay. It borders the Gulf of Mexico.