National Register of Historic Places listings in Penobscot County, Maine

This is a list of properties on the National Register of Historic Places in Penobscot County, Maine. This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Penobscot County, Maine, United States.

Source: Wikipedia — National Register of Historic Places listings in Penobscot County, Maine (CC BY-SA 4.0)