Massachusetts, by county
Select a county on the map or in the side index. Drag to tilt, scroll to zoom.
What the atlas holds here
Prisons & jails
49 facilities
Frequently asked
How many prisons and jails are in Massachusetts, United States?
The atlas lists 49 prisons, jails and detention centres in Massachusetts, United States, including 17 county jails and 13 state prisons.
How many police stations are in Massachusetts, United States?
527 police units are listed for Massachusetts, United States: 404 police departments, 65 special jurisdiction agencies and 40 state agencies.
How do I find out if someone is in jail in Massachusetts, United States?
Call the county jail or use the sheriff's online inmate lookup. Official agency records are the final authority on custody status.
Which county has the most facilities?
Worcester County, with 7 prisons and jails and 83 police units.
Are telephone numbers available for these facilities?
Yes for 48 entries of 49. Where a number is missing, the facility page shows its address and map location; details can change, so the agency's own website is the authority.
What specialised facilities are there in Massachusetts, United States?
The atlas lists 9 juvenile facilities here. Each has its own page with the address and, where published, a phone number.
Which town in Massachusetts, United States has the most prisons?
Boston has the most, with 3 places of detention in the atlas, out of 34 towns with at least one.
How is Massachusetts, United States divided in the atlas?
The atlas files Massachusetts, United States by county, following official administrative boundaries; 14 counties currently have entries. Every facility is listed in the county where it is located; Worcester County is the largest by number of entries.
Which neighbouring areas of the United States are covered?
The United States has 54 other areas in the atlas; Texas has the most entries (2,229), followed by Pennsylvania.