Monhegan is a plantation on an island of the same name in Lincoln County, Maine, United States, about 12 nautical miles (22 km) off the coast. The population was 75 at the 2000 census. As a plantation, Monhegan's governmental status falls between township and town. The island is accessible by mailboat ferry (no automobiles) from Boothbay Harbor, New Harbor and Port Clyde.