Northeast Harbor is a village on Mount Desert Island, located in the town of Mount Desert in Hancock County, Maine, United States. The original settlers, the Someses and Richardsons, arrived around 1761. The village has a significant summer population, and has long been a quiet enclave of the rich and famous. Summer residents include the Rockefeller family. The village was once so popular as a summer resort among Philadelphians, including members of the Clark banking family, that it was sometimes known as "Philadelphia on the rocks". Its ZIP code is 04662. Its area code is 207, exchange 276.