Judge Andreasen was appointed as a district judge in January 2008. He had served as a magistrate in Woodbury County in 2006 and 2007 before his appointment to the bench. He received his undergraduate degree from the University of Iowa in 1989 and his law degree from the same institution in 1992. Judge Andreasen was in private practice in Sioux City since 1992. He is a member of the Iowa State and Woodbury County Bar Associations and the Iowa Judges Association. He is married with one child.