Lyndon Police Department Lyndon, IL 61261 Phone : (815) 778-4811 Business Category Police Departments Police--lyndon Lyndon, IL 61261 Phone : (815) 778-4811 Business Category Lyndon City Of--police Dept Lyndon, IL 61261 Phone : (815) 778-4811 Business Category Government Offices-City Village & Twp Police Departments Government Offices State & Local Government Offices & Public Schools