This brief examines the mobility of public school teachers and principals (including assistant principals) in Iowa and presents annual and five-year mobility rates between 2006/07 and 2010/11. An average of 6.7 percent of teachers changed schools between consecutive years, and 18.9 percent changed schools within a five-year span. Teachers were more likely to move to another school if they were male, had less teaching experience, were in an urban school, or taught in a school with lower academic performance, fewer students, or more economically disadvantaged students. For principals the annual mobility rate averaged 9.2 percent, and the five-year mobility rate was 27.5 percent. Principals were more likely to move to another school if they had less experience or were in a school with fewer students. [To access "An Examination of the Movement of Educators within and across Three Midwest Region States. REL 2017-185," see ED570453. For "An Examination of the Movement of Educators within Minnesota. Stated Briefly. REL 2017-196," see ED570466. For "An Examination of the Movement of Educators within Wisconsin. Stated Briefly. REL 2017-195," see ED570452.]