National Register of Historic Places listings in Middlesex County, Massachusetts explained

This is a listing of places in Middlesex County in the U.S. state of Massachusetts that are listed in the National Register of Historic Places. With more than 1,300 listings, the county has more listings than any other county in the United States.

Cities and towns listed separately

The following Middlesex County cities and towns have large numbers of sites listed in the National Register of Historic Places. Lists of their sites are on separate pages, linked below.

	Community	Image		First Date listed		Last Date listed		Count
Arlington				64
Cambridge				207
Concord				27
Framingham				20
Lexington				17
Lowell				41
Marlborough				17
Medford				36
Newton				187
Reading				90
Sherborn				25
Somerville				84
Stoneham				69
Wakefield				95
Waltham				109
Weston				15
Winchester				68

Other municipalities

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Former listings

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