Belleville is located at (38.521567, -89.995208).
According to the United States Census Bureau, the city has a total area of 19.0 square miles (49.2 km²), of which, 18.9 square miles (48.8 km²) of it is land and 0.1 square miles (0.3 km²) of it (0.68%) is water.
Jay Farrar (now of Son Volt), Mike Heidorn, and Jeff Tweedy (now of Wilco) of the now-defunct alt country group Uncle Tupelo are from Belleville along with Neal Doughty, keyboardist for 70's classic rock band REO Speedwagon. The City's downtown is also home to blues, punk, jazz, and rock clubs. Belleville Philharmonic Society was formed in 1866, making it the second oldest philharmonic orchestra in the country.
There were 17,603 households out of which 28.4% had children under the age of 18 living with them, 42.0% were married couples living together, 13.5% had a female householder with no husband present, and 40.8% were non-families. 35.1% of all households were made up of individuals and 14.0% had someone living alone who was 65 years of age or older. The average household size was 2.27 and the average family size was 2.95.
In the city the population was spread out with 23.4% under the age of 18, 9.0% from 18 to 24, 30.3% from 25 to 44, 20.1% from 45 to 64, and 17.2% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 88.9 males. For every 100 females age 18 and over, there were 85.0 males.
The median income for a household in the city was $35,979, and the median income for a family was $46,426. Males had a median income of $33,361 versus $25,375 for females. The per capita income for the city was $18,990. About 9.3% of families and 11.7% of the population were below the poverty line, including 16.2% of those under age 18 and 9.3% of those age 65 or over.
Higher Education - Saint Louis University Belleville Campus, Lindenwood University Belleville Campus, and Southwestern Illinois College
Four high schools - 2 public (Belleville Township HS East, Belleville Township HS West), and 2 private (Althoff Catholic HS, Governor French Academy).
Belleville is also home to a relatively large grade school district. Belleville District 118 has 9 elementary schools, (Roosevelt, Abraham Lincoln, Douglas, Franklin, Jefferson, Union, Westhaven, Henry Raab, and Washington) and 2 junior high schools (Central Junior High and West Junior High). Belle Valley School District 119 includes North Elementary School and South Middle School. Harmony School District 175 includes Ellis Elementary and Emge Jr. High. Signal Hill School is the only school in district 181. Whiteside Elementary School and Whiteside Middle School make up district 115. Parochial grade schools include St. Peter's Cathedral, [St. Mary St.Augustine (SMSA)]
, St. Teresa, Blessed Sacrament, Our Lady Queen of Peace, and Zion Lutheran School.
Belleville is home to 3 St. Louis MetroLink stations - Memorial Hospital, Belleville, and College.
Belleville's airport hosts Scott Air Force Base and MidAmerica St. Louis Airport.