There are 66 Probation Departments in Pennsylvania, serving a population of 12,790,505 people in an area of 44,732 square miles. There is 1 Probation Department per 193,795 people, and 1 Probation Department per 677 square miles.
The state of Pennsylvania is ranked 27th in Probation Departments per capita, and 12th in Probation Departments per square mile.