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Massachusetts 2020

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The Jail System

Massachusetts has 19 jails in 14 counties. The jail population in 2020 was 9,380.

The Prison System

As of December 31, 2020, the number of prisoners under the jurisdiction of the State of Massachusetts correctional authorities was 6,762 located in 16 state prisons and held in custody of private prisons or local jails. Massachusetts operated facilities with a budget of $716,229,636.

The Community Corrections System

As of December 31, 2020, Massachusetts community corrections population was 34,624 under probation and 1,316 under parole.


The National Institute of Corrections depends on publicly available information to provide the information on this page.

The statistics for budgets, employee positions, and state prison facilities data come from state departments of corrections, other state reports and state agencies. If data is missing for a state, then we were unable to find that information.

The data on prison population and incarcerate rate come from the Prisoners in 2020 report released by the Bureau of Justice Statistics (BJS). The report includes the count of prisoners in the unified systems of Alaska, Connecticut, Delaware, Hawaii, Rhode Island, and Vermont.

Violent and property crime rates are provided by the Federal Bureau of Investigations.

The number of counties per state comes from the United States Census Bureau.

Rates (Per 100K)

Incarceration Rate


Prison Population
Parole Population
Probation Population


Number of State Prison Facilities
16 facilities
Number of Jail Facilities


Prison Budget