National Historic Register properties in Harpswell, Maine

• Bailey Island Cobwork Bridge
• Bailey Island Library Hall
• Eagle Island
• Greene Cottage
• Kellogg, Elijah, Church
• Kellogg, Elijah, House
• Little Mark Island Monument
• Merriconeag Grange No. 425
• Merriconegan Farm
• Orr's Island Meeting House
• Stover, Capt. Johnson H. Jr., House