How many prisons in Massachusetts?

As of December 2022, there are 20 prisons in Massachusetts. They include:

- Barnstable County Correctional Facility

- Berkshire County Jail and House of Correction

- Bristol County House of Correction

- Dukes County Jail

- Essex County Correctional Facility

- Franklin County House of Correction

- Hampden County Correctional Center

- Hampshire County Jail and House of Correction

- Middlesex County Jail and House of Correction

- Norfolk County Correctional Center

- Old Colony Correctional Center

- Plymouth County Correctional Facility

- Riker's Island

- South Bay House of Correction

- Souza-Baranowski Correctional Center

- Springfield House of Correction

- Worcester County Jail and House of Correction

- Boston Pre-Release and Parole Center

- Deer Island House of Correction

- Lemuel Shattuck Hospital