Iowa Code § 321.487: Violation of promise to appear.

1. Any person willfully violating a citation to appear in court given as provided in this chapter, is guilty of a simple misdemeanor, regardless of the disposition of the charge upon which the person was cited. Venue shall be in the county where the defendant was to appear or in the county where the person resides.

2. An appearance in response to such citation may be made either in person or by counsel.