Mo. Rev. Stat. § 37.130

The commissioner of administration shall establish a demographic and statistical unit. This unit shall be responsible for the coordination and preparation of all official population estimates and projections required by state agencies, commissions and local governmental units. The unit shall maintain a processing center for information from each federal census and shall be the responsible agency for federally sponsored programs and federal-state cooperative programs within the areas of demographic analysis. In addition the unit shall provide requested assistance in all reapportionment matters. All agencies of the state shall submit to the office of administration, upon request, any information required for the performance of the duties required under this law.