Belleville, IL zip codes
Belleville, Illinois has 5 zip codes (4 residential, 1 PO box or single-organization). Most of it is in St. Clair County. Together these zip codes are home to about 94K people.
Zip codes
5
Population
94K
All zips combined
Largest zip
62221
29,875 residents
Income range
$66K–$82K
Median by zip