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Middlesex County, Massachusetts

Hosmer Homestead Concord MA

Photo: Hosmer Homestead, circa 1710, located at 138 Baker Avenue, Concord, MA; listed on the National Register of Historic Places in 1999. Photo by wikipedia username:JOhn Phelan, 2010, creative commons, [cc 3.0], accessed June, 2021.


Middlesex County Neighborhoods

Middlesex County was first organized in 1643.

Middlesex County government was abolished in 1997. It remains as a political/geographic region. County courts, jails and other former functions are now carried on by employees of the State of Massachusetts. Historically, functions of the institutions relating to the county seat were shared between Cambridge and Lowell.