OA Planning and Budget » Directory OA Planning and Budget » Directory Go back to directory. Add to Address Book. OA Planning and Budget OA Planning and BudgetDivision of Budget and Planning Contact: Matt Hesser, State Demographer Work Capitol Building, Room 124 Cole Jefferson City MO 65101 work Work Phone: 573-751-9318work Work Email: matt.hesser@oa.mo.govINTERNET Categories: State Updated 1 year ago.