List of law enforcement agencies in Massachusetts

This is a list of law enforcement agencies in the Commonwealth of Massachusetts. According to the US Bureau of Justice Statistics' 2018 Census of State and Local Law Enforcement Agencies (CSLLEA), the state had 374 law enforcement agencies employing 19,578 (sworn) personnel (27,489 personnel, total, including sworn and non-sworn positions), with an average of 284 sworn personnel per 100,000 residents (compared to the national average of 241 sworn personnel per 100,000 residents, with Massachusetts maintaining approximately 16% more sworn personnel per 100,000 residents than the national average).

Source: Wikipedia — List of law enforcement agencies in Massachusetts (CC BY-SA 4.0)