Enrollment
1,518
Louisiana · 2024-25 NCES data
High school (grades 9-12) · Slidell, LA
Federal NCES profile for Northshore High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 47/100.
The verdict
Northshore High School earns 47/100 on the Resource Investment Index, with class sizes larger than 74% of Louisiana schools. It is also one of the largest schools in Louisiana.
Northshore High School has class sizes larger than 74% of Louisiana schools. Computed live against every Louisiana school reporting to NCES.
By Resource Investment Index, Northshore High School ranks #1 of 3 high schools in Slidell, LA.
NCES ID 220165001650 Verify on NCES CCD record →
Enrollment
1,518
Louisiana · 2024-25 NCES data
Teachers (FTE)
82.0
Federal CCD staff survey
Students per teacher
18.5:1
vs 16.8:1 Louisiana avg
+10% vs state
Free-lunch eligible
28.6%
vs 62.5% Louisiana avg
-54% vs state
How Northshore High School compares with Louisiana and U.S. medians
Slightly above state median
18.5:1 - 1.7 above the Louisiana state median of 16.8:1, indicating larger average class loads than typical schools in the state.
Northshore High School is a large high school in Slidell, Louisiana, enrolling 1,518 students.
Class loads run somewhat heavier than typical: 18.5:1 puts it in the larger third of Louisiana schools by student-teacher ratio.
Comparatively few students face economic hardship here, 28.6% free-meal eligibility runs 54% below the Louisiana average.
By headcount it is one of the larger campuses in Louisiana, bigger than 98% of state schools at 1,518 students.
Its Resource Investment Index sits near the middle of the pack among 1,330 scored Louisiana schools.
Against 31 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #10.
Its student body is led by White (60%) and African American (22%) (diversity index 58/100).
On the academic-pipeline side it reports 8 Advanced Placement courses.
Counselor availability sits well past the ASCA benchmark, roughly 380 students sharing each counselor, though short of the most stretched campuses.
Attendance holds up well here: only 9.1% of students were chronically absent, below the typical post-pandemic national figure.
The federal civil-rights collection also records 34 expulsions at this campus for 2021-22.
Among Slidell's high schools, it stands alongside Slidell High School (1,654 students): Northshore High School is smaller than that campus by headcount and runs heavier classes (18.5:1 vs 17.8:1).
St. Tammany Parish also operates Mandeville High School (2,006 students) and Slidell High School (1,654 students) alongside Northshore 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
Northshore 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 | 18.5:1 | ▲ 10% | 16.8:1 | 15.7:1 |
| Free-lunch eligible | 28.6% | ▼ 54% | 62.5% | 51.7% |
| Enrollment | 1,518 | top 2% | - | - |
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: White at 59.6% of enrollment.
Simpson diversity index - at 58.2, Northshore High School is more mixed than the Louisiana school average of 43.9.
District-wide per-pupil expenditure for St. Tammany Parish, which includes Northshore 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 |
|---|---|---|---|
| Mandeville High School | Larger | Lower economic need | Similar S:T ratio |
| Slidell High School | Similar size | Higher economic need | Similar S:T ratio |
| Covington High School | Similar size | Higher economic need | Similar S:T ratio |
| Joseph B. Lancaster Elementary School | Similar size | Lower economic need | Higher S:T ratio |
| Fontainebleau High School | Similar size | Similar economic need | Similar S:T ratio |
Comparisons are relative to Northshore High School's own figures; each column derives from NCES Common Core of Data.
2 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 Northshore 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.
Northshore High School has 1,518 students enrolled. It is a high school in Slidell, LA.
The student-teacher ratio at Northshore High School is 18.5:1, which is 10% higher than the Louisiana average of 16.8:1 and 18% higher than the national average of 15.7:1.
28.6% of students at Northshore High School are eligible for free lunch, compared to the Louisiana average of 62.5%.
The largest demographic group at Northshore High School is White at 59.6% of enrollment, in Slidell, LA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 58.2/100.
Northshore High School has a Resource Investment Index of 47/100 (typical reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Northshore High School ranks #1 of 3 high schools in Slidell, LA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Slidell on the city page.
Northshore High School earns 47/100 on the Resource Investment Index, with class sizes larger than 74% 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 Northshore High School, St. Tammany Parish also operates Mandeville High School (2,006 students), Slidell High School (1,654 students), and Covington High School (1,600 students). See the St. Tammany 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, “Northshore High School, Slidell 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/northshore-high-school-la
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