Massachusetts Correctional Institution – Concord
The Old Concord Reformatory Building at MCI-Concord | |
| Location | Concord, Massachusetts |
|---|---|
| Coordinates | 42°27′53″N 71°23′44″W / 42.46472°N 71.39556°W |
| Status | Closed |
| Security class | Medium |
| Capacity | Operational Capacity: 752 |
| Opened | May 1878 |
| Closed | July 2024 |
| Managed by | Massachusetts Department of Correction |
| Director | Superintendent Dean Gray (before closing) |
The Massachusetts Correctional Institution at Concord (MCI-Concord) was a medium security prison for men located in Concord, Massachusetts in the United States. Opened in 1878, it was the oldest running state prison for men in Massachusetts. It was under the jurisdiction of the Massachusetts Department of Correction. The facility had a total capacity of 614 general population beds, 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.