Adams County Assessment Supvr 507 Vermont St Quincy, IL 62301 Phone : (217) 277-2135 Business Category Government Offices-County Legislative Bodies Adams County Of--courthouse Quincy, Supervisor Of Assessments Quincy, IL 62301 Phone : (217) 277-2135 Business Category Government Offices-County Government Offices & Public Schools Adams County Of--adams County Courthouse, Supervisor Of Assessments Quincy, IL 62301 Phone : (217) 277-2135 Business Category Government Offices-County Government Offices & Public Schools