Family Services Department 10325 Highway 21 Hillsboro, MO 63050 Phone : (636) 797-9601 Business Category Social Service & Welfare Organizations Individual & Family Social Services Missouri State Of--social Services Dept Of, Family Support Division, Jefferson County 10325 Highway 21 Hillsboro, MO 63050 Phone : (636) 797-9601 Business Category Government Offices-State Government Offices-County Social Service & Welfare Organizations Government Offices State & Local Government Offices & Public Schools