Rangeley Plantation is a plantation in Franklin County, Maine, United States. The population was 184 at the 2020 census. According to the United States Census Bureau, the plantation has a total area of 47.4 square miles, of which 40.7 square miles is land and 6.7 square miles is water. The northern part of Rangeley Plantation includes part of Ran…Rangeley Plantation is a plantation in Franklin County, Maine, United States. The population was 184 at the 2020 census. According to the United States Census Bureau, the plantation has a total area of 47.4 square miles, of which 40.7 square miles is land and 6.7 square miles is water. The northern part of Rangeley Plantation includes part of Rangeley Lake, and is home to Rangeley Lake State Park.