Galveston is a resort city and port on the Gulf Coast of the U.S. state of Texas. It encompasses 211.31 square miles (547.3 km2) on Galveston Island and Pelican Island. As of the 2020 census, the city had a population of 53,695, making it the second-largest municipality in Galveston County, where it also serves as the county seat. Located at the southern end of the Greater Houston metropolitan area, Galveston sits on the northwestern coast of the Gulf of Mexico.