Grand Isle is a town located in Jefferson Parish, Louisiana. Grand Isle has a 2025 population of 991 . Grand Isle is currently growing at a rate of 1.43% annually but its population has decreased by -1.39% since the most recent census, which recorded a population of 1,005 in 2020.
The median age in Grand Isle is 54 years: 53.2 years for males, and 55.5 years for females. For every 100 females there are 159.7 males.
Data after 2023 is projected based on recent change
The racial composition of Grand Isle includes 93.01% White, and smaller percentages for Black or African American, other race and multiracial populations.
White (93.01%)
Two or more races (4.81%)
Black or African American (1.4%)
Other race (0.78%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 599 | 93.01% |
| Two or more races | 31 | 4.81% |
| Black or African American | 9 | 1.4% |
| Other race | 5 | 0.78% |
Married
Widowed
Divorced
Separated
Never Married