Belleville, Saint Clair County, Illinois, USA
Municipality
Location overview

Belleville is the seat of St. Clair County in southwestern Illinois, within the Metro East portion of the St. Louis metropolitan area. Founded in 1814, it became the county seat after George Blair donated land for a public square. Its French name means beautiful city. German immigration helped shape the city’s cultural heritage. The public square remains a central landmark, with the Veterans Memorial Fountain at its center.