Enrollment
76
Combined
DISTRICT 1,170 · STATE 527
SCHOOL COMMUNITY·JEFFERSON PARISH·NCES 220084000606
Grand Isle High School
149 Ludwig Lane, Grand Isle, LA 70358 · (985) 787-2577 · Jefferson Parish
GRADES PK–12COMBINED43-RURALTITLE IREGULAR SCHOOL76 STUDENTS
D
allk12 Grade
Scored higher than 13% of Louisiana public K-12 schools
- C-Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- C-Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- B-Three-year trend Change in reading and math proficiency over the last three test years.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Louisiana public K-12 schools
Student : Teacher
3.8:1
20 FTE teachers
DISTRICT 9.1:1 · STATE 52.1:1
Free / Reduced Lunch
66%
50 students
DISTRICT 68% · STATE 70%
Community
0
0 members
Enrollment and student:teacher ratio compared against other combined schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Pre-K | 6 | 8% |
| Kindergarten | 4 | 5% |
| Grade 1 | 2 | 3% |
| Grade 2 | 6 | 8% |
| Grade 3 | 4 | 5% |
| Grade 4 | 5 | 7% |
| Grade 5 | 6 | 8% |
| Grade 6 | 3 | 4% |
| Grade 7 | 7 | 9% |
| Grade 8 | 4 | 5% |
| Grade 9 | 8 | 11% |
| Grade 10 | 7 | 9% |
| Grade 11 | 5 | 7% |
| Grade 12 | 9 | 12% |
Student demographics
40%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 69% · STATE 65% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Test scores
LEAP 2025 2025-26 . % Mastery+English Language Arts
27.0%
LA avg 41.8% . -6.0pp since 2022
Math
31.0%
LA avg 34.2% . +4.0pp since 2022
What this means: On the LEAP 2025, Louisiana's statewide test, about 27 of every 100 students at this school read and write at grade level and about 31 of 100 do math at grade level. Across all Louisiana schools, those numbers are about 42 and 34. Reading and writing scores are down about 6 points since 2022, while math scores are up about 4 points.
LEAP 2025 results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2025-26 | 27.0% | 31.0% |
| 2024-25 | 38.0% | 17.0% |
| 2023-24 | 17.0% | 17.0% |
| 2022-23 | 33.0% | 27.0% |
% Mastery+, all students and all tested grades.
Source: LEAP 2025. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
UNDERPERFORMING
Bottom 10% of LA schools after controlling for student poverty
Actual proficiency
18.7%
composite math + reading, all grades
Predicted
37.0%
based on LA schools with similar FRL share
Beats by
-18.3pp
below demographic expectation
What this means: About 19% of students here test proficient in math and reading, below the roughly 37% typical for Louisiana schools with a similar share of low-income students. BeatsExpectations compares each school with others at the same poverty level, not by raw scores, so a school lands here when its results trail those comparable schools, which is not the same as having low scores. A higher-scoring school can still fall in this tier if similar schools score higher still.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like Grand Isle High School
Grand Isle High School's state test result (18.7% proficient) is higher than 1 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Grand Isle High School this school | 76 | 65.8% | 18.7% |
| Plainview High School Glenmora | 313 | 73.2% | 36.5% |
| Simpson High School Simpson | 252 | 67.5% | 48.0% |
| South Cameron High School Grand Chenier | 161 | 50.9% | 28.0% |
| Dodson High School Dodson | 283 | 70.7% | 16.3% |
| Calvin High School Calvin | 289 | 61.6% | 34.0% |
Matched among Louisiana K-12 schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where Grand Isle High School ranks
Among K-12 schools| Measure | This school | In Louisiana |
|---|---|---|
| Enrollment ranked largest first | 76 | #65 of 81 |
Ranked against other public K-12 schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
76
-55 (-42%) vs 2020
-77% since 1990-91, when it was 330
Student : Teacher
3.8:1
was 6.9:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 76 | 20.1 | 3.8:1 | 66% (50) |
| 2023-24 | 99 | 21.7 | 4.6:1 | 59% (58) |
| 2022-23 | 92 | 18.7 | 4.9:1 | 66% (61) |
| 2020-21 | 131 | 19 | 6.9:1 | 54% (71) |
| 2017-18 | 142 | 19 | 7.5:1 | 32% (45) |
| 2015-16 | 139 | 21 | 6.6:1 | 71% (98) |
| 2010-11 | 146 | 23 | 6.3:1 | 73% (107) |
| 2000-01 | 257 | 27 | 9.5:1 | 79% (203) |
| 1990-91 | 330 | 28 | 11.8:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Grand Isle High School.
Since 2017-18: students down 46% (142 to 76); teachers up 6% (19 to 20.1).
About Grand Isle High School
Grand Isle High School is a public school serving multiple grade levels in Grand Isle, Louisiana. Its grade span covers pre-K through 12, with 76 students on the rolls. That compares with an average of about 527 students for combined schools in Louisiana.
Grand Isle High School is a school in Jefferson Parish. The district has 74 schools and 46,790 students.
Of every 100 students at Grand Isle High School, about 76 are White. After that, the student body is 13% Hispanic, 5% multiracial, and 4% Native American. Among all residents of Jefferson Parish, the White share is about 50%. Measured by the diversity index, the student body scores 40%.
The school had 20.1 full-time-equivalent teachers in 2024-25. Its student-to-teacher ratio is 3.8:1. The gap from the 52.1:1 average for combined schools in Louisiana is 48.4 students per teacher. The school reported 66% of students eligible for free or reduced-price lunch in 2024-25. The figure for public schools in Jefferson Parish is close, at 68%.
Among Louisiana public K-12 schools, Grand Isle High School outscored 13%, which works out to a D on the allk12 Grade.
Grand Isle High School posts an average proficiency rate across its state test results of 18.7%. Schools with its free or reduced-price lunch share in Louisiana are predicted to post 37.0%, so the school is 18.3 points behind and in the state's bottom 10%.
For the population of Jefferson Parish, the median household earns about $65,252 a year, a bachelor's degree or higher is held by about 31% of adults, and the share of residents below the poverty line is 13%. Grand Isle High School shares Jefferson Parish with 85 other public schools.
About 20.6 miles separate Grand Isle High School from the closest public school, Golden Meadow Middle School. Compared with its nearest neighbors, Grand Isle High School ranks 7th of 7 on average proficiency.
The school's federal locale classification is Rural: Remote.
The school counted 131 students in 2020-21 and 76 in 2024-25. A shift in the grades offered could account for part of the difference. By 2024-25, the school had 3.8 students per teacher, compared with 6.9 in 2020-21.
This community page is for conversations about open houses, carpools, and field trips. Teachers and staff are welcome to share updates too.
Jefferson Parish at a glance
View full county profilePopulation
430,920
Census ACS
Median income
$65,252
Household, ACS
Bachelor's+
31%
Adults 25+
Poverty rate
13%
Below federal line
Schools in county
86
47,983 students
Quick facts
Related schools
Other schools in Jefferson Parish
- Bonnabel Magnet Academy High SchoolHigh · 2,376 students
- Kenner Discovery Health Sciences AcademyCombined · 2,263 students
- John Ehret High SchoolHigh · 1,850 students
- West Jefferson High SchoolHigh · 1,438 students
- East Jefferson High SchoolHigh · 1,381 students
- Riverdale High SchoolHigh · 1,259 students
Nearby schools
- Golden Meadow Middle School20.6 mi · 318
- Golden Meadow Lower Elementary School20.8 mi · 155
- Golden Meadow Upper Elementary School20.8 mi · 125
- Galliano Elementary School23.4 mi · 383
- South Lafourche High School24.8 mi · 990
- South Plaquemines Elementary School24.9 mi · 205
Frequently asked questions
About Grand Isle High SchoolWhat is the total enrollment at Grand Isle High School?
Grand Isle High School enrolls approximately 76 students in grades PK-12.
What grades does Grand Isle High School serve?
Grand Isle High School serves grades PK-12.
How many teachers does Grand Isle High School have?
Grand Isle High School employs 20 FTE teachers, for a student-to-teacher ratio of 3.8:1.
What is the student diversity at Grand Isle High School?
Student demographics at Grand Isle High School are roughly 76% White, 13% Hispanic, 1% Black, 5% Two or more.
What district is Grand Isle High School in?
Grand Isle High School is part of Jefferson Parish.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.