Federal prisons in Massachusetts
The Federal Bureau of Prisons runs 1 prison in Massachusetts. Pick one for its visiting hours and rules, the inmate mailing address, how to send money, what to wear, and the latest news. Not sure where your loved one is? Search the federal inmate locator.
| Prison | Security | City | People |
|---|---|---|---|
| FMC Devens with a minimum-security camp |
Administrative | Ayer | 1,137 |
Population from the BOP's own count, checked November 5, 2026.