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The total population of Grand Isle is estimated to be 903 with 492 males (54.49%) and 411 females (45.51%). There are 81 less females than males in Grand Isle.
In 2022, the population of Grand Isle was 995, a 0.90% decrease year-by-year from 2021. Previously, in 2021, Grand Isle's population was 1,004, a decline of 0.20% compared to a population of 1,006 in 2020.
The median age in Grand Isle, LA is 51.5, as per 2021 ACS 5-Year Estimates. Of the total population, 15.38% were under the age of 15, 12.59% aged 15 to 29, 52.45% aged 30 to 64, 19.46% aged 65 to 84, and 0.12% were 85 years of age and older.
Racial distribution of Grand Isle population: 96.15% are White, 0.93% are Black or African American, 0.70% are some other race and 2.21% are multiracial.