There are 128 Jails & Prisons in New Jersey, serving a population of 8,960,161 people in an area of 7,353 square miles. There is 1 Jail & Prison per 70,001 people, and 1 Jail & Prison per 57 square miles.
The state of New Jersey is ranked 49th in Jails & Prisons per capita, and 3rd in Jails & Prisons per square mile.