St. Clair County is the ninth most populous county in Illinois. Located directly east of St. Louis, the county is part of the Metro East region of the Greater St. Louis metropolitan area in southern Illinois. As of the 2020 United States census, St. Clair County had a population of 257,400, making it the third most populous county in Illinois outside the Chicago metropolitan area. Belleville is the county’s seat and largest city.
Madison County is a county in the U.S. state of Illinois. It is a part of the Metro East in southern Illinois. According to the 2020 census, it had a population of 264,776, making it the eighth-most populous county in Illinois and the most populous in the southern portion of the state. The county seat is Edwardsville, and the largest city is Granite City.
Columbia is a city mainly in Monroe County with a small portion in St. Clair County in the U.S. state of Illinois, about 12 miles (19 km) south of St. Louis, Missouri. The population was 10,999 at the 2020 census.
Alorton was a village in St. Clair County, Illinois, United States. Incorporated in 1944, it was one of three municipalities that merged to form the city of Cahokia Heights on May 6, 2021; the other two were the village of Cahokia and the city of Centreville. Prior to merger, Alorton had a population of 1,566 and land area of 1.8 square miles (4.7 km2) in the 2020 Census.
Belleville is a city and the county seat of St. Clair County, Illinois, United States. It is located within Greater St. Louis. The population was 42,404 at the 2020 census, making it the most-populated city in Southern Illinois and in the Metro East region of Greater St. Louis. 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. It is also the seat of the Roman Catholic Diocese of Belleville and the National Shrine of Our Lady of the Snows.
Cahokia was a village in St. Clair County, Illinois, United States. It was located east of the Mississippi River in the Greater St. Louis metropolitan area. As of the 2010 census, 15,241 people lived in the village, a decline from 16,391 in 2000. On May 6, 2021, the village ceased to exist, being incorporated into the new city of Cahokia Heights.
Centreville was a city in St. Clair County, Illinois, United States. The population was 5,309 in 2010, down from 5,951 at the 2000 census. On May 6, 2021, the city ceased to exist, being incorporated into the new city of Cahokia Heights.
East St. Louis is a city in St. Clair County, Illinois. It is directly across the Mississippi River from Downtown St. Louis, Missouri and the Gateway Arch National Park. East St. Louis is in the Metro-East region of Southern Illinois. Once a bustling industrial center, like many cities in the Rust Belt, East St. Louis was severely affected by the loss of jobs due to the flight of the population to the suburbs during the riots of the late 1960s. In 1950, East St. Louis was the fourth-largest city in Illinois when its population peaked at 82,366. As of the 2020 census, the city had a population of 18,469, less than one-quarter of the 1950 census and a decline of almost one third since 2010.
Millstadt is a village in St. Clair County, Illinois, United States, located at the crossing of Illinois Routes 163 and 158. The village is known for its German heritage, with more than half its people of German descent. The population was 4,011 at the 2010 census, but a more recent study in July 2018 estimated the number at 3,885.
O'Fallon is a city in St. Clair County, Illinois, United States. The 2020 census listed the population at 32,289. The city is the second largest city in the Metro-East region and Southern Illinois. It sits 5 miles (8.0 km) from Scott Air Force Base and 18 miles (29 km) from Downtown St Louis.
Washington Park is a village in St. Clair County, Illinois, United States. The population was 4,196 as of the 2010 census, down from 5,345 in 2000.
Greater St. Louis is a bi-state metropolitan statistical area that completely surrounds and includes the independent city of St. Louis, the principal city. It includes parts of both Missouri and Illinois. The city core is on the Mississippi Riverfront on the border with Illinois in the geographic center of the metro area. The Mississippi River bisects the metro area geographically between Illinois and Missouri; however, the Missouri portion is much more populous. St. Louis is the focus of the largest metro area in Missouri and the Illinois portion known as Metro East is the second largest metropolitan area in that state. St. Louis County is independent of the City of St. Louis and their two populations are generally tabulated separately.
Metro East is a region in southern Illinois that contains eastern and northern suburbs and exurbs of St. Louis, Missouri, United States. It encompasses five Southern Illinois counties in the St. Louis Metropolitan Statistical Area. The region's most populated city is Belleville, with 45,000 residents. The Metro East is the second largest urban area in Illinois after the Chicago metropolitan area and, as of the 2000 census, the population of the Metro East statistical area was 599,845 residents, a figure that had risen to above 700,000 in 2010. The significant growth in the Metro East is mainly due to people in smaller outlying towns in Illinois moving to the area for better economic/job opportunities.
The 12th congressional district of Illinois is a congressional district in the southern part of U.S. state of Illinois. It has been represented by Republican Mike Bost since 2015.
Wyvetter H. Younge was a Democratic member of the Illinois House of Representatives, representing the 114th District from 1975 until 2008. She served as the Assistant Majority Leader later in her career. Her district included Alorton, Belleville, Brooklyn, Cahokia, Centreville, East St. Louis, Fairview Heights, Mascoutah, Millstadt, O'Fallon, Sauget, Scott Air Force Base, Shiloh, Swansea and Washington Park.
East Saint Louis Senior High School is the only high school located in East St. Louis, Illinois. The school serves about 1,438 students in grades 9 to 12 in the East Saint Louis Public Schools district. It was featured in the Jonathan Kozol book Savage Inequalities. In 1998, East St. Louis Lincoln High School consolidated with East St. Louis High.
Eddie Lee Jackson was an American politician.
Cahokia Unit School District 187 is a school district based in Cahokia Heights, Illinois in Greater St. Louis/Metro East.
Cahokia Heights is a city in St. Clair County, Illinois, United States. It was founded on May 6, 2021, by the merger of the villages of Cahokia and Alorton and the city of Centreville. On May 6, 2021, Curtis McCall Sr. was sworn in as the city's first mayor, having run unopposed.
