Each edition grades its towns against each other only.
Grand Isle’s best subject grade is an A for the outdoors; its weakest is a D− for hazard risk. 37% of residents live below the poverty line in Grand Isle, against 20% in Louisiana’s towns and 9.6% across U.S. towns. No town in Louisiana scores lower than Grand Isle on hazard risk. CDC estimates put its residents' health behind 96% of the country. Grand Isle’s trail density is 1.2 miles per square mile, above both the Louisiana town median (0.2) and the median of U.S. towns (0.4). No town in Louisiana scores higher than Grand Isle on the outdoors. Grand Isle has 8 places on the National Register of Historic Places, among them Fort Livingston and Kirby-Adam House. Grand Isle has fewer than 2,500 residents, so it gets subject grades but no overall grade.
Where Grand Isle beats most towns, and one thing worth knowing.
Coastal flooding makes up 68% of the storm damage FEMA expects here.
FEMA National Risk Index · OpenFEMA · OpenStreetMap
Each subject compared with towns across the country (schools within Louisiana), ordered by how far Grand Isle is from typical.
How TownRatings grades towns →
The archive holds 6 old photos and papers going back to 1880.
8 places on the National Register of Historic Places.
Who provides power, water and the rest in Grand Isle, and how to reach them.
EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Aug 3, 2026.
Ordered by what stands out in Grand Isle.
49% of Grand Isle adults have high blood pressure. Grand Isle beats the Louisiana average on 3 of 32 CDC measures and trails it on 11. 19% of Grand Isle adults report frequent physical distress.
| Grand Isle | Louisiana towns | U.S. towns | |
|---|---|---|---|
| High blood pressure (CDC PLACES) | 49% | 44% | 35% |
| Frequent physical distress (CDC PLACES) | 19% | 16% | 14% |
| Smoke cigarettes (CDC PLACES) | 21% | 19% | 14% |
| Fair or poor health (CDC PLACES) | 29% | 27% | 19% |
| What stands out | Grand Isle | LA |
|---|---|---|
| Fewer adults facing housing insecurity | 13.4% | 16.8% |
| Fewer adults lacking emotional support | 24.4% | 28.6% |
| More adults with COPD | 13.4% | 8.5% |
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
Its public schools are run by the Jefferson Parish school district. Its one school is below.
| School | Level | Students | Letter |
|---|---|---|---|
| Grand Isle High SchoolLargest public high schoolGrades PK–12 | Grades PK–12 | 76 | B+ |
NCES · EDFacts · graded within LA on state tests and graduation
Grand Isle’s FEMA risk score is 100 of 100. Since 1978, 3,679 flood insurance claims have been paid out in Grand Isle.
FEMA flood insurance claims · FEMA National Risk Index · OpenFEMA
Grand Isle has warm winters and warm summers, with plenty of rain. No town among the 163 in Louisiana we compare has a lower July high than Grand Isle.
NOAA U.S. Climate Normals, 1991–2020
About one in 3 of Grand Isle’s working residents works in town. Since 2013, Grand Isle has lost 46 jobs, to 268 in 2023. The top destinations are New Orleans (10%), Lafayette (4%) and Marrero (4%).
Census LEHD 2023 · ACS
The typical Grand Isle home is worth about $249,000, down 7.4% in a year, 17% above the Louisiana typical home. 87% of households own their home in Grand Isle.
Census ACS, 2020–24 · Zillow Home Value Index · Redfin Data Center
9.4 miles of trail in 4 parks and preserves. The biggest place to walk is Elmer's Island Wildlife Refuge, 1,149 acres with 2.1 miles of trail. Among 124 Louisiana towns, just 10 have a higher share of conserved land than Grand Isle.
| Biggest places to walk | Trails | Acres |
|---|---|---|
| 1. Elmer's Island Wildlife Refuge | 2.1 mi | 1,149 |
| 2. Grand Isle State Park | 2.1 mi | 199 |
| 3. Ninety West Park | — | 1 |
Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-US
None within 15 miles of Grand Isle; the nearest are
About 0 of every 100 Grand Isle residents are enrolled in college, against 6 across Louisiana.
1,296 counted in 2010 and 1,005 in 2020; an estimated 1,012 in 2025.
U.S. Census 2010 & 2020 counts · Census Bureau estimate, July 1, 2025
Town in Louisiana, United States
Grand Isle is a town in Jefferson Parish in the U.S. state of Louisiana, located on a barrier island of the same name in the Gulf of Mexico. The island is at the mouth of Barataria Bay where it meets the Gulf. The town of Grand Isle is statistically part of the New Orleans−Metairie−Kenner metropolitan statistical area, though it is not connected to New Orleans' continuous urbanized area. The population was 1,005 as of the 2020 U.S. census, down from 1,296 from the previous 2010 U.S. census. Grand Isle's main street is the seaside start of Louisiana Highway 1 (LA 1), which stretches 436.2 miles (702.0 km) away to the northwest corner of the state, ending near Shreveport. LA 1's automobile ca…
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
Short answers, built from the data on this page.
Yes. That is 4 years of the area's median household income ($62,655 across the New Orleans-Metairie, LA metro area). Cost of living, which also weighs rents, property taxes and how many households pay 30% or more of their income for housing, grades C−.
