North Dakota Constitution Art. VII, § 8

Each county shall provide for law enforcement, administrative and fiscal services, recording and registration services, educational services, and any other governmental services or functions as may be provided by law. Any elective office provided for by the counties shall be for a term of four years. Elective officers shall be elected by the electors in the jurisdiction in which the elected officer is to serve. A candidate for election for sheriff must be a resident in the jurisdiction in which the candidate is to serve at the time of the election. The office of sheriff shall be elected. The legislative assembly may provide by law for the election of any county elective officer, other than the sheriff, to serve one or more counties provided the affected counties agree to the arrangement and any candidate elected to the office is a qualified elector of one of the affected counties.