Sauget ( ) is a village in St. Clair County, Illinois, United States. It is part of Greater St. Louis. The population was 141 at the 2020 census, down from 159 in 2010. Geography Sauget is located at (38.587013, -90.166690). According to the 2010 census, Sauget has a total area of , of which (or 92.08%) is land and (or 7.92%) is water. Sauget is located in the American Bottom, the floodplain of the Mississippi River opposite St. Louis, Missouri. History Sauget was incorporated as "Monsanto" in 1926. It was formed to provide a lighter regulatory environment and low taxes for Monsanto chemical plants at a time when local jurisdictions had most of the responsibility for environmental rules. It was renamed in honor of Leo Sauget, its first Village President. The village was incorporated in part in response to the failure of government in adjacent East St. Louis, Illinois to deliver essential services, and in part to take advantage of federal grant funding programs available only to governmental units, as opposed to private industry. The village of Sauget operates the American Bottoms Treatment Plant, a large sewage treatment plant that serves much of the Illinois side of the St. Louis metropolitan area. In addition, the village operates a municipal physical/chemical treatment plant that receives industrial wastewater from its factories. This has been cited as one of only three municipal treatment plants of this type in the United States. The Monsanto plant in Sauget was the nation's largest producer of PCBs before a 1977 ban, and the EPA has designated the plant site along Dead Creek as a Superfund site. Sauget has its own 16-member fire department and 16-member police department; this is despite having a population below 250 people. There is roughly one officer and firefighter for every 15 residents in Sauget. Sauget supplies municipal water and wastewater services. Sauget is also home to minor league baseball: the Gateway Grizzlies of the Frontier League, which are controlled by the Sauget family. Located in Sauget is the National Building Arts Center, a historic preservationist and salvage organization which holds one of the largest collections of significant architectural and industrial elements in the US. Demographics As of the census of 2000, there were 249 people, 101 households, and 61 families residing in the village. The population density was . There were 115 housing units at an average density of . The racial