Williamsville Library 141 W Main St # A Williamsville, IL 62693 Phone : (217) 566-3520 Business Category Libraries Williamsville Village Of Williamsville, IL 62693 Phone : (217) 566-3520 Business Category Government Offices-City Village & Twp Libraries Social Service & Welfare Organizations Recreation Centers Individual & Family Social Services Membership Sports & Recreation Clubs Government Offices State & Local Government Offices & Public Schools