St. Louis is an independent city and a major United States port on the eastern line of the state of Missouri. As of the 2010 census, the population was 319,294, and a 2012 estimate put the population at 318,172,making it the 58th-largest U.S. city in 2012. The metropolitan St. Louis area, known as Greater St. Louis (CSA), is the 19th-largest metropolitan area in the United States with a population of 2,900,605. The photos speak for themselves.