247.180.  Elections in district, when, procedure — not required, when — vacant post, how filled. — 1.  Regular elections and elections held for the purposes of section 247.130 shall be called annually by the board of directors on the first Tuesday after the first Monday in April.  Such elections shall be conducted by the appropriate election authority pursuant to chapter 115.

  2.  Notwithstanding any other provision of law, if there is only one candidate for the post of director of any given subdistrict, then no election shall be held, and the candidate or candidates shall assume the responsibilities of their offices at the same time and in the same manner as if elected.  If there is no candidate for the post of any given subdistrict, then no election shall be held for that post and it shall be considered vacant, to be filled pursuant to the provisions of section 247.060.