The Office of County Auditor was created in 1870. The duties of the office covered areas that had previously been given to the County Judge in 1851 and to the Clerk of Court in 1861. The State Legislature added the duties of Commissioner of Elections to the Auditor's Office in the early 1970's. The County Auditor is an elected position with a term of four years.
The primary duties and responsibilities of the Linn County Auditor are as follows: