Galveston is the county seat of Galveston County located along the Gulf Coast region in the U.S. state of Texas within the Houston–Sugar Land–Baytown metropolitan area. As of the 2005 U.S. Census estimate, the city had a total population of 57,466. Galveston is accessible by a causeway linking Galveston Island to the mainland on the north end of the city, a toll bridge on the western end of the island, and by ferry boat service on the east end of the city. According to the United States Census Bureau, the city has a total area of 539.6 km² (208.4 mi²). 119.5 km² (46.2 mi²) of it is land and 420.1 km² (162.2 mi²) of it (77.85%) is water.

Galveston is known for its historic neighborhoods and a ten-mile long seawall designed to protect the city from floods. It is also home to the infamous Balinese Room, a historic nightclub and former illegal gambling hall located on a 600-foot pier extending into the Gulf of Mexico. As of the census of 2000, there were 57,247 people, 23,842 households, and 13,732 families residing in the city. The population density was 478.9/km² (1,240.4/mi²). There were 30,017 housing units at an average density of 251.1/km² (650.4/mi²). The racial makeup of the city was 58.66% White, 25.49% Black or African American, 0.42% Native American, 3.21% Asian, 0.07% Pacific Islander, 9.73% from other races, and 2.41% from two or more races. 25.77% of the population were Hispanic or Latino of any race.