Home to the lesser known section of Acadia National Park, Isle Au Haut is also a thriving year-round community some seven miles off of Stonington.
Penobscot Island Air runs two daily mail flights to Matinicus five days a week, weather permitting. Ferry service is limited and the crossing is 2¼ hours, the longest crossing to any of the year-round islands. There are no stores or restaurants on the island; groceries are either ordered by fax and flown in by plane or purchased on the mainland. Electricity is generated on-island, and fuel is delivered by barge. The main industry on the island is lobster fishing and there are some seasonal businesses and several resident authors.
- Year-round population, 2010 U.S. Census: 74
- Summer population estimate: 100
- Acres: 814
- Mainland ferry terminal: Rockland
- Estimated distance between mainland and island ferry docks: 23 miles
- Ferry service: Maine State Ferry Service
- School: K–8 one-room schoolhouse; high-school students must go off-island and board
- Form of town government: Plantation (within the Land Use Regulatory Commission)