Forreston City Hall 102 S Walnut Ave Forreston, IL 61030 Phone : (815) 938-2400 Business Category Government Offices & Public Schools Forreston City Of City Hall Forreston, IL 61030 Phone : (815) 938-2400 Business Category Government Offices-City Village & Twp Government Offices State & Local Government Offices & Public Schools Forreston City Of--city Hall Forreston, IL 61030 Phone : (815) 938-2400 Business Category Government Offices-City Village & Twp Government Offices State & Local Government Offices & Public Schools