Peoria County Of--administrator 324 Main St Peoria, IL 61602 Phone : (309) 672-6056 Business Category Government Offices-County Legislative Bodies Government Offices & Public Schools County Board 324 Main St # 502 Peoria, IL 61602 Phone : (309) 672-6056 Business Category Government Offices-County Legislative Bodies Peoria County Of--county Board 324 Main St Peoria, IL 61602 Phone : (309) 672-6056 Business Category Government Offices-County Government Offices & Public Schools