Enrollment
686
Louisiana · 2024-25 NCES data
Middle school (grades 6-8) · Slidell, LA
St. Tammany Junior High School
Federal NCES profile for St. Tammany Junior High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 34/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 220165001651
👥 S:T ratio 14
🌟 Gifted program 70
🎓 Counselors 0
📋 Attendance 51
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
St. Tammany Junior High School earns 34/100 on the Resource Investment Index, with class sizes larger than 90% of Louisiana schools.
- #3 of 3
- middle schools in Slidell · Resource Index
- 34
- Resource Index · Typical
- 21.4:1
- large classes for Louisiana
- 63.3%
- free-lunch eligible
St. Tammany Junior High School has class sizes larger than 90% of Louisiana schools. Computed live against every Louisiana school reporting to NCES.
By Resource Investment Index, St. Tammany Junior High School ranks #3 of 3 middle schools in Slidell, LA.
School address
District: St. Tammany Parish · Louisiana
NCES ID 220165001651 Verify on NCES CCD record →
Teachers (FTE)
32.0
Federal CCD staff survey
Students per teacher
21.4:1
vs 16.8:1 Louisiana avg
+27% vs state
Free-lunch eligible
63.3%
vs 62.5% Louisiana avg
+1% vs state
Student-teacher ratio in context
How St. Tammany Junior High School compares with Louisiana and U.S. medians
What stands out at St. Tammany Junior High School
St. Tammany Junior High School is a higher-need, mid-sized middle school in Slidell, Louisiana, enrolling 686 students.
Class loads run heavy: 21.4:1 is larger than about 90% of Louisiana schools and 27% above the 16.8:1 state mean, so each teacher carries more students than is typical.
Its free-meal eligibility rate of 63.3% lands close to the Louisiana typical range, neither a high- nor low-need campus by this measure.
Enrollment of 686 puts it in the larger third of Louisiana schools by headcount.
Its Resource Investment Index lands in the lower third of 1,330 scored Louisiana schools.
Among 373 similarly sized, similarly resourced-need Louisiana schools statewide, it ranks #285, in the lower tier once campus size and economic need are matched.
Its student body is led by African American (71%) and White (15%) (diversity index 47/100).
Counselor access is stretched at roughly 686 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Attendance runs somewhat below the norm, with 19.7% of students chronically absent per the 2021-22 civil-rights collection.
Discipline events run high: 142 in- and out-of-school suspensions were reported for 686 students in the 2021-22 Civil Rights Data Collection.
The federal civil-rights collection also records 29 expulsions at this campus for 2021-22.
Among Slidell's middle schools, it stands alongside Slidell Junior High School (724 students): St. Tammany Junior High School is smaller than that campus by headcount and runs heavier classes (21.4:1 vs 19.1:1).
St. Tammany Parish also operates Mandeville High School (2,006 students) and Slidell High School (1,654 students) alongside St. Tammany Junior 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
How St. Tammany Junior High School compares
St. Tammany Junior 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 | 21.4:1 | ▲ 27% | 16.8:1 | 15.7:1 |
| Free-lunch eligible | 63.3% | ▲ 1% | 62.5% | 51.7% |
| Enrollment | 686 | top 18% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
21.4:1
Leaner classes than 12% of US schools, heavier class loads than most.
686
Bigger than 79% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
63.3%
free-lunch eligible
- 1% above the Louisiana average of 62.5%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
21.4:1
students per teacher
- 27% above state mean
Top 90% in Louisiana - lower ratio than 10% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Engagement
19.7%
chronically absent (missed 10%+ of school days)
In the 15-20% range, nearing the "high" absenteeism threshold.
Funding equity
$14,024
per pupil, district-wide
- below Louisiana avg of $16,376
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors1.0 FTE
Per 686 students, the combined health-and-guidance staffing load for this school.
Discipline context
6
in-school suspensions + 136 out-of-school
Suspension rate: 0.9 per 100 students. Combined in-school and out-of-school rate: 20.7 per 100 students. Reported via the Civil Rights Data Collection. Includes 29 expulsions.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
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.
Student demographics
African American 71.1%
White 14.6%
Hispanic or Latino 7.0%
Two or More 4.2%
Asian 2.3%
Native Hawaiian / Pacific Islander 0.4%
American Indian / Alaska Native 0.3%
Largest group: African American at 71.1% of enrollment.
Student-body diversity index 46.6/100
Simpson diversity index - at 46.6, St. Tammany Junior High School is more mixed than the Louisiana school average of 43.9.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for St. Tammany Parish, which includes St. Tammany Junior High School.
$14,024
Per student
-14%
vs Louisiana
Avg $16,376
-15%
vs U.S.
Avg $16,593
Revenue mix
Local 51.9%
State 38.3%
Federal 9.8%
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.
How St. Tammany Junior High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Mandeville High School | Larger | Lower economic need | Lower S:T ratio |
| Slidell High School | Larger | Lower economic need | Lower S:T ratio |
| Covington High School | Larger | Lower economic need | Lower S:T ratio |
| Northshore High School | Larger | Lower economic need | Lower S:T ratio |
| Joseph B. Lancaster Elementary School | Larger | Lower economic need | Similar S:T ratio |
Comparisons are relative to St. Tammany Junior High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,006
- Students per teacher
- 19.1:1
- Resource Index
- 47/100
- Enrollment
- 1,654
- Students per teacher
- 17.8:1
- Resource Index
- 42/100
- Enrollment
- 1,600
- Students per teacher
- 19.5:1
- Resource Index
- 35/100
- Enrollment
- 1,518
- Students per teacher
- 18.5:1
- Resource Index
- 49/100
- Enrollment
- 1,480
- Students per teacher
- 21.1:1
- Resource Index
- 45/100
Similar middle schools in Slidell
2 comparable middle schools (grades 6-8) serving the same city.
Similar middle schools statewide
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.
Similar enrollment (~686 students)
Similar student-teacher ratio (~21.4:1)
Next steps
Verify locally before acting on St. Tammany Junior High School's federal record.
- Compare St. Tammany Junior High School against another school. Compare schools
- St. Tammany Parish's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
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.
Frequently asked questions about St. Tammany Junior High School
How many students attend St. Tammany Junior High School?
St. Tammany Junior High School has 686 students enrolled. It is a middle school in Slidell, LA.
What is the student-teacher ratio at St. Tammany Junior High School?
The student-teacher ratio at St. Tammany Junior High School is 21.4:1, which is 27% higher than the Louisiana average of 16.8:1 and 36% higher than the national average of 15.7:1.
What percentage of students receive free lunch at St. Tammany Junior High School?
63.3% of students at St. Tammany Junior High School are eligible for free lunch, compared to the Louisiana average of 62.5%.
What is the racial and ethnic makeup of St. Tammany Junior High School?
The largest demographic group at St. Tammany Junior High School is African American at 71.1% of enrollment, in Slidell, LA.
What is the Resource Investment Index for St. Tammany Junior High School?
St. Tammany Junior High School has a Resource Investment Index of 34/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does St. Tammany Junior High School rank among middle schools in Slidell?
By Resource Investment Index, St. Tammany Junior High School ranks #3 of 3 middle 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 middle schools in Slidell on the city page.
Is St. Tammany Junior High School a good school?
St. Tammany Junior High School earns 34/100 on the Resource Investment Index, with class sizes larger than 90% of Louisiana schools. 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.
What other schools are in St. Tammany Parish?
Besides St. Tammany Junior 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.
Related tools
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.