Whenever a vacancy occurs in a board of supervisors, the Governor shall fill the vacancy. The appointee shall hold office until the election and qualification of his or her successor.

The election of a supervisor to fill the vacancy for the unexpired term shall be held at the next general election, unless the term expires on the first Monday after January 1st succeeding the election.

When a vacancy occurs from the failure of the person elected to file his or her oath or bond as provided by law, and the person elected is appointed to fill the vacancy, he or she shall hold office for the unexpired term.