This is a list of properties and historic districts in Middletown, Connecticut that are listed on the National Register of Historic Places. There are 35 in the city, which is a large portion of all NRHP listings in Middlesex County. There are 89 others in the county, listed here.
The Middletown listings are:
"This National Park Service list is complete through NPS recent listings posted January 24, 2025."
References.
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