Public Aid Department 807 W Main St Hardin, IL 62047 Phone : (618) 576-2258 Business Category Administration Of Social Human Resource & Income Maintenance Programs Illinois State Government--human Services Department Of, Calhoun County Office 807 W Main St Hardin, IL 62047 Phone : (618) 576-2258 Business Category Government Offices-State Government Offices State & Local Government Offices & Public Schools