Enrollment
1,850
Louisiana · 2024-25 NCES data
High school (grades 9-12) · Marrero, LA
Federal NCES profile for John Ehret High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 32/100.
The verdict
John Ehret High School earns 32/100 on the Resource Investment Index, with class sizes larger than 98% of Louisiana schools. It is also one of the largest schools in Louisiana.
John Ehret High School has class sizes larger than 98% of Louisiana schools. Computed live against every Louisiana school reporting to NCES.
By Resource Investment Index, John Ehret High School ranks #8 of 9 public schools in Marrero, LA.
NCES ID 220084000598 Verify on NCES CCD record →
Enrollment
1,850
Louisiana · 2024-25 NCES data
Teachers (FTE)
61.0
Federal CCD staff survey
Students per teacher
30.3:1
vs 16.8:1 Louisiana avg
+80% vs state
Free-lunch eligible
66.3%
vs 62.5% Louisiana avg
+6% vs state
How John Ehret High School compares with Louisiana and U.S. medians
Larger classes than state median
30.3:1 - 13.5 above the Louisiana state median of 16.8:1, indicating larger average class loads than typical schools in the state.
John Ehret High School is a higher-need, large high school in Marrero, Louisiana, enrolling 1,850 students.
Class loads run heavy: 30.3:1 is larger than about 98% of Louisiana schools and 80% above the 16.8:1 state mean, so each teacher carries more students than is typical.
Its free-meal eligibility rate of 66.3% lands close to the Louisiana typical range, neither a high- nor low-need campus by this measure.
By headcount it is one of the larger campuses in Louisiana, bigger than 99% of state schools at 1,850 students.
Its Resource Investment Index lands in the lower third of 1,330 scored Louisiana schools.
Against 25 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #11.
Its student body is led by African American (54%) and Hispanic or Latino (22%) (diversity index 63/100).
No Advanced Placement courses are reported for this campus in the federal data.
Counselor availability sits well past the ASCA benchmark, roughly 370 students sharing each counselor, though short of the most stretched campuses.
17.9% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
Discipline events run high: 553 in- and out-of-school suspensions were reported for 1,850 students in the 2021-22 Civil Rights Data Collection.
The federal civil-rights collection also records 8 expulsions at this campus for 2021-22.
Among Marrero's high schools, it stands alongside L.W. Higgins High School (1,136 students): John Ehret High School is larger than that campus by headcount and runs leaner classes (30.3:1 vs 31.6:1).
Jefferson Parish also operates Bonnabel Magnet Academy High School (2,376 students) and Kenner Discovery Health Sciences Academy (2,263 students) alongside John Ehret High School.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
John Ehret High School on the metrics families compare, against Louisiana and U.S. means.
| Metric | This school | vs Louisiana | Louisiana avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 30.3:1 | ▲ 80% | 16.8:1 | 15.7:1 |
| Free-lunch eligible | 66.3% | ▲ 6% | 62.5% | 51.7% |
| Enrollment | 1,850 | top 1% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Largest group: African American at 53.7% of enrollment.
Simpson diversity index - at 63.4, John Ehret High School is more mixed than the Louisiana school average of 43.9.
District-wide per-pupil expenditure for Jefferson Parish, which includes John Ehret High School.
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Bonnabel Magnet Academy High School | Larger | Lower economic need | Higher S:T ratio |
| Kenner Discovery Health Sciences Academy | Similar size | Lower economic need | Lower S:T ratio |
| Grace King High School | Similar size | Lower economic need | Lower S:T ratio |
| West Jefferson High School | Similar size | Similar economic need | Lower S:T ratio |
| East Jefferson High School | Smaller | Lower economic need | Lower S:T ratio |
Comparisons are relative to John Ehret High School's own figures; each column derives from NCES Common Core of Data.
1 comparable high schools (grades 9-12) serving the same city.
Matched by enrollment size and by staffing ratio across all of Louisiana, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on John Ehret High School's federal record.
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
John Ehret High School has 1,850 students enrolled. It is a high school in Marrero, LA.
The student-teacher ratio at John Ehret High School is 30.3:1, which is 80% higher than the Louisiana average of 16.8:1 and 93% higher than the national average of 15.7:1.
66.3% of students at John Ehret High School are eligible for free lunch, compared to the Louisiana average of 62.5%.
The largest demographic group at John Ehret High School is African American at 53.7% of enrollment, in Marrero, LA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 63.4/100.
John Ehret High School has a Resource Investment Index of 32/100 (typical reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, John Ehret High School ranks #8 of 9 public schools in Marrero, LA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Marrero on the city page.
John Ehret High School earns 32/100 on the Resource Investment Index, with class sizes larger than 98% of Louisiana schools. It is also one of the largest schools in Louisiana. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
Besides John Ehret High School, Jefferson Parish also operates Bonnabel Magnet Academy High School (2,376 students), Kenner Discovery Health Sciences Academy (2,263 students), and Grace King High School (1,463 students). See the Jefferson Parish district page for the complete list.
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.
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PlainSchools, “John Ehret High School, Marrero LA.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/john-ehret-high-school-la
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