Counties in Maine

• Androscoggin (100 historic properties)
• Aroostook (59 historic properties)
• Cumberland (225 historic properties)
• Franklin (43 historic properties)
• Hancock (121 historic properties)
• Kennebec (119 historic properties)
• Knox (92 historic properties)
• Lincoln (103 historic properties)

• Oxford (92 historic properties)
• Penobscot (103 historic properties)
• Piscataquis (52 historic properties)
• Sagadahoc (56 historic properties)
• Somerset (56 historic properties)
• Waldo (57 historic properties)
• Washington (96 historic properties)
• York (171 historic properties)