Public Aid Department 1220 Centreville Ave Belleville, IL 62220 Phone : (618) 257-7400 Business Category Administration Of Social Human Resource & Income Maintenance Programs Human Services Dept Of--st Clair Co Office 1220 Centreville Ave Belleville, IL 62220 Phone : (618) 257-7400 Business Category Government Offices-State Government Offices State & Local Government Offices & Public Schools Illinois State Of--st Clair County Belleville 1220 Centreville Ave Belleville, IL 62220 Phone : (618) 257-7400 Business Category Government Offices-State Government Offices State & Local Government Offices & Public Schools