Belleville is located in Illinois. Belleville, Illinois 62221has a population of 42,582. Belleville 62221 is less family-centric than the surrounding county with 26% households with children. The county percentage for households with children is 28%.
The median household income in Belleville, Illinois 62221 is $49,082. The median household income for the surrounding county is $59,624 compared to the national median of $66,222. The median age of people living in Belleville 62221 is 39.4 years.
The average high temperature in July is 89.6 degrees, with an average low temperature in January of 22.1 degrees. The annual precipitation is 39.37.