According to the United States Census Bureau, the city has a total area of 2.6square miles (6.6Square kilometers), all of it land.West Columbia is served by Central EMS. There is not a hospital within the city limits. However, Sweeny Community Hospital, Brazosport Regional, Angleton-Danbury Medical Center and Matagorda Regional are all within a 30-mile radius. The first Congress of the Republic of Texas was convened in West Columbia on October 1836 (it was then named simply Columbia). West Columbia is a city in Brazoria County in the U.S. state of Texas within 50 miles of Eastern Columbia. The population was 4,255 at the 2000 census.