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Belleville is a city in St. Clair County, Illinois, United States, coterminous with the now defunct Belleville Township. The population was 42,034 according to the Census Bureau's 2015 estimates. It is the eighth-most populated city outside the Chicago Metropolitan Area and the most populated city south of Springfield in the state of Illinois. It is the county seat of St. Clair County, and the seat of the Roman Catholic Diocese of Belleville and the National Shrine of Our Lady of the Snows. Belleville is the most populated city in the Metro-East region of the St. Louis Metropolitan Area and in Southern Illinois. Due to its proximity to Scott Air Force Base, the population receives a boost from military and federal civilian personnel, defense contractors, and military retirees.HistoryGeorge Blair named the city of Belleville in 1814. Blair donated an acre of his land for the Town Square and an additional 25acre adjoining the square for the new county seat, causing the county seat to be transferred from the village of Cahokia. Belleville was incorporated as a village in 1819, and became a city in 1850. It is said that Blair named the city Belleville (French for "beautiful city") because he believed that a French name would attract new residents. Since major immigration in the mid-19th century occurred following revolutions in Germany, most of the population is of German heritage.Add Belleville and other United States destinations to your travel plans using our United States online itinerary planner.
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