At any election in which the question of establishing or changing the exterior boundaries of a county or city is submitted to a vote, the county clerk shall:
(1) Include with every mailed ballot a map indicating the proposed boundaries; or
(2) Print in a voters’ pamphlet prepared for the election a map indicating the proposed boundaries. [1983 c.350 §69; 1999 c.410 §52; 2007 c.154 §33]