🏝️ Mount Desert Island

Mount Desert Island is the largest island of Maine, United States. Lying in Hancock County off the north-central coast, it has an area of 108 square miles (280 km2), making it the sixth-largest island in the contiguous United States, and the second-largest island on the Eastern Seaboard, behind Long Island and ahead of Martha's Vineyard. According to the 2020 census, the island has a year-round population of 10,535. In 2017, an estimated 3.5 million tourists visited Acadia National Park on MDI. The island is home to numerous well-known summer colonies such as Northeast Harbor and Bar Harbor.