4-Year Graduation Rates in Iowa by Cohort and Public School District

This dataset provides the 4-Year graduation rates in Iowa by cohort (represented by graduating class) and public school district starting with the Class of 2009. A cohort in the graduation rate calculation starts with a group of students entering ninth grade for the first time. The cohort is adjusted to add students that transfer in and subtract students that transfer out during a four year time period for calculating a graduation rate.