Mo. Rev. Stat. § 394.130: Territory supplied by cooperative may be divided into voting districts.

Notwithstanding any other provision of this chapter, the bylaws may provide that the territory in which a cooperative supplies electric energy to its members may be divided into two or more voting districts for the purpose of properly distributing its directors over the area in which its members reside. In such case the bylaws shall prescribe the manner in which such voting districts shall function in the election of directors at annual meetings.