Buying a home in Penobscot County, Maine doesn't have to be difficult - Homes.com makes home buying a breeze. With 1,128 homes for sale in Penobscot County, Maine, you can search by price, bedrooms, neighborhood, and even by property type. Search Penobscot County homes for sale, foreclosures, MLS listings, and more. Make an informed decision with Penobscot County school data, neighborhood information, find Penobscot County real estate agents, and research home values in Penobscot County, ME. Homes.com has everything you need but the house keys.