Mo. Rev. Stat. § 70.050: Certification of election to secretary of state — vote necessary for adoption.

Within ten days after such election, the county clerk of each of such counties shall send a correct and duly certified abstract of the votes polled at such election to the secretary of state. If a majority of the voters voting on the question vote for the question in each of the counties taken separately it shall be deemed to have been adopted, but if it shall fail to receive a majority in any one or more of the counties, it shall be deemed to have failed. The secretary of state shall canvass the certified abstracts and notify the presiding commissioner of each of the county commissions of the results.