Grand Isle is located in Maine. Grand Isle, Maine has a population of 419. Grand Isle is less family-centric than the surrounding county with 19.79% of the households containing married families with children. The county average for households married with children is 23.53%.
The median household income in Grand Isle, Maine is $31,339. The median household income for the surrounding county is $47,278 compared to the national median of $69,021. The median age of people living in Grand Isle is 52.3 years.
The average high temperature in July is 75.2 degrees, with an average low temperature in January of -3.9 degrees. The average rainfall is approximately 37.3 inches per year, with 96.4 inches of snow per year.
