Galveston is a coastal resort city and port off the Southeast Texas coast on Galveston Island and Pelican Island in the U.S. state of Texas. The community of 211.31 square miles (547.3 km2), with a population of 53,695 at the 2020 census, is the county seat of surrounding Galveston County and second-largest municipality in the county. It is also within the Houston–The Woodlands–Sugar Land metropolitan area at its southern end on the northwestern coast of the Gulf of Mexico.