The Jail System
Massachusetts has 19 jails in 14 counties. The jail population in 2019 was 9,380.
The Prison System
As of December 31, 2019, the number of prisoners under the jurisdiction of the State of Massachusetts correctional authorities was 8,205 located in 16 state prisons and held in custody of private prisons or local jails. Massachusetts operated facilities with a budget of $689,034,581.
The Community Corrections System
As of December 31, 2019, Massachusetts community corrections population was 51,338 under probation and 1,348 under parole.