Belleville is located in Illinois.
Belleville, Illinois has population of 42,034.
Belleville is less family-centric than the surrounding county with 27.05% of the households containing married families with children.
The median household income in Belleville, Illinois is $46,558.
The median household income for the surrounding county is $50,728 compared to the national median of $53,482.
The median age of people living in Belleville is 37.1 years.
The average high temperature in July is 90.7 degrees, with an average low temperature in January of 23 degrees.
The average rainfall is approximately 42.6 inches per year, with 11.8 inches of snow per year.