There are 99 Jails & Prisons in Massachusetts, serving a population of 6,789,319 people in an area of 7,800 square miles. There is 1 Jail & Prison per 68,578 people, and 1 Jail & Prison per 78 square miles.
The state of Massachusetts is ranked 48th in Jails & Prisons per capita, and 5th in Jails & Prisons per square mile.