Grand Isle is a CDP located in Aroostook County, Maine. Grand Isle has a 2025 population of 278 . Grand Isle is currently growing at a rate of 7.34% annually and its population has increased by 47.09% since the most recent census, which recorded a population of 189 in 2020.
The average household income in Grand Isle is $58,514 with a poverty rate of 15.16%. The median age in Grand Isle is 61 years: 60 years for males, and 61.5 years for females. For every 100 females there are 121.8 males.
Data after 2023 is projected based on recent change
The racial composition of Grand Isle includes 98.36% White, and smaller percentages for Native American and multiracial populations.
White (98.36%)
Native American (1.64%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 240 | 98.36% |
| Native American | 4 | 1.64% |
Married
Widowed
Divorced
Separated
Never Married
Grand Isle's average per capita income is $49,559. Household income levels show a median of $36,000. The poverty rate stands at 15.16%.
Name | Median | Mean |
|---|---|---|
| Families | $81,667 | $102,000 |
| Married Families | $81,667 | - |
| Households | $36,000 | $58,514 |
| Non Families | $25,278 | $35,829 |
Average Income
Median Household Income
Poverty Rate