There are 93 Probation Departments in Iowa, serving a population of 3,118,102 people in an area of 55,842 square miles. There is 1 Probation Department per 33,527 people, and 1 Probation Department per 600 square miles.
The state of Iowa is ranked 3rd in Probation Departments per capita, and 6th in Probation Departments per square mile.