Circuit Clerk-civil 133 W State St Sycamore, IL 60178 Phone : (815) 895-7131 Business Category Government Offices-County Legislative Bodies Dekalb County Government--circuit Clerk, Civil Sycamore, IL 60178 Phone : (815) 895-7131 Business Category Government Offices-County Government Offices & Public Schools Dekalb County Of--civil Sycamore, IL 60178 Phone : (815) 895-7131 Business Category Government Offices-County Government Offices & Public Schools