Iowa Code § 331.551: Office of county treasurer.

1. The office of treasurer is an elective office except that if a vacancy occurs in the office, a successor shall be elected or appointed to the unexpired term as provided in chapter 69.

2. A person elected or appointed to the office of treasurer shall qualify by taking the oath of office as provided in section 63.10 and give bond as provided in section 64.10.

3. The term of office of the treasurer is four years.