The facility had a total capacity of 614 general population beds,[1] but with a long-term decline in the number of men incarcerated for the entire state, the population as of January 2024 had decreased to about 300, which made Governor Maura Healey announce a plan to close the prison in the summer of that year and transfer the remaining prisoners to other facilities.

A Massachusetts State Police barracks (Troop A-3) and the Northeastern Correctional Center (Minimum Security) are located across the highway from the prison.

Programs were set up at Concord so that the offender could prove himself reformed, and be paroled could learn a trade to be used on their return to society.

In 1955, the state prison at Walpole, and the reformatory at Concord were in fact "two" distinct "maximum" security facilities.

[6][7] In early July, 1882 at 12:00 midnight inmates at the Concord Reformatory began to cause a disturbance by shouting and banging on doors.

The noise went on for hours and the prison's warden decided to punish the inmates by revoking their yard privileges for July 4.

State Police quelled escape attempt by 59 convicts at Concord Reformatory; rescue 13 guards, 2 civilians held as hostages.

[10] On January 24, 2024, Governor Healey announced that the state Department of Corrections planned to close the prison by summertime, citing a decline in the statewide prison population and an effort to curb state spending in the face of declining tax revenues.