Idaho Code § 31-804: Supervision of elections.

(1) The board of county commissioners must establish, abolish and change election precincts and canvass all election returns.

(2) The board must provide all poll lists, poll books, blank returns and certificates, proclamations of election and other appropriate and necessary appliances for holding all elections in the county, and allow reasonable charges therefor, and for the transmission and return of the same to the proper officers.