Grand Isle, Louisiana Demographics & Population 2026
During the 2020–2024 ACS period, Grand Isle, Louisiana had a total population of 623, the 326th largest town in Louisiana. The poverty rate is 36.5%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- More than 1 in 4 residents live below the poverty line (36.5%), well above the national average of 12.4%.
- Unemployment rate of 20.3% is notably above the national average.
Grand Isle Quick Facts
How Grand Isle Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 644 | 623 | -3.3% |
| Median home value | $266,100 | $269,500 | +1.3% |
How Grand Isle Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 59 | National average: 61
Education
Educational Attainment (Adults 25+)
Grand Isle Rankings in Louisiana
Explore Louisiana Rankings
Other Cities in Jefferson Parish
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Metairie | 139,729 | $73,042 | 12.5% | $327,500 |
| Kenner | 64,904 | $64,020 | 15.4% | $246,300 |
| Marrero | 32,540 | $41,402 | 23.0% | $169,800 |
| Terrytown | 24,726 | $51,718 | 19.2% | $220,300 |
| Harvey | 20,915 | $48,774 | 25.8% | $200,100 |
| Gretna | 17,389 | $43,110 | 26.9% | $257,400 |
| Estelle | 16,341 | $78,869 | 17.0% | $217,300 |
| River Ridge | 13,312 | $84,336 | 9.7% | $357,400 |
| Woodmere | 11,879 | $75,828 | 18.2% | $191,100 |
| Waggaman | 11,330 | $68,374 | 24.5% | $170,400 |
Cities Similar to Grand Isle
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Estherwood | 622 | $45,833 | $88,900 | 7.2% | 27.2% |
| Mermentau | 627 | $117,764 | $55,300 | 37.0% | 20.4% |
| Wallace Ridge | 628 | N/A | $200,000 | 14.5% | 25.8% |
| Grayson | 613 | $46,875 | $126,700 | 6.5% | 32.6% |
| Convent | 637 | N/A | N/A | 20.0% | 4.4% |
A note before these figures: with a population of 623, Grand Isle's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.
Population Overview
Grand Isle is a small community located in Louisiana, within Jefferson Parish. The total population is 623. It ranks as the 326th most populous out of 488 Census-designated places in Louisiana.
Age Demographics
The median age in Grand Isle is 58.4 years. This is 54% higher than the state median of 38.0 years. 17.0% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.
Economy, Income & Housing
The poverty rate stands at 36.5%. This is 93% higher than the state poverty rate of 18.9%. With more than one in five residents living below the poverty line, economic hardship is a significant challenge for the community. The unemployment rate is 20.3%. This is 222% higher than the state rate of 6.3%. The median home value is $269,500. Housing costs are 24% higher than the state median of $216,500. 87.3% of occupied housing units are owner-occupied. This homeownership rate is 29% higher than the state average of 67.4%.
Race & Ethnicity
Grand Isle has a predominantly White (non-Hispanic) population, comprising 94.7% of all residents. Black or African American residents account for 0.8%. The White (non-Hispanic) population is significantly higher than the state average (94.7% vs 55.7%). The Black or African American population (0.8%) is well below the state average of 30.5%. The Hispanic or Latino population (0.8%) is well below the state average of 7.2%.
Education
15.4% of residents aged 25 and older hold a bachelor's degree or higher. This is 43% lower than the state rate of 27.0%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 87.9%.
Data Sources & Methodology
All demographic data for Grand Isle, Louisiana is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Louisiana state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 488 Census-designated places in Louisiana. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Grand Isle, Louisiana?
Grand Isle, Louisiana has a population of 623 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Grand Isle, LA?
The Census Bureau does not publish a reliable median household income estimate for Grand Isle — the community is too small for the ACS sample. The national median is $80,734.
What is the poverty rate in Grand Isle, LA?
The poverty rate in Grand Isle is 36.5%. This means approximately 221 residents live below the federal poverty line.
What is the racial makeup of Grand Isle, Louisiana?
Grand Isle's population is 94.7% White, 0.8% Black, 0.8% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Grand Isle, LA?
The median home value in Grand Isle is $269,500.
How educated is Grand Isle, Louisiana?
15.4% of adults (25+) in Grand Isle hold a bachelor's degree or higher, and 0.0% hold a graduate or professional degree.