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Slidell High School

Public Grades 9-12
147th
SchoolDigger Rank ?
of 325 Louisiana High Schools
Better than 55% of Louisiana high schools
Summary

Slidell High School is a large public high school in Slidell, LA, serving 1,654 students in grades 9-12 as part of the highly-rated St. Tammany Parish school district.

Slidell High has experienced a notable decline in its state ranking over the past decade, dropping from a top-tier 4-star school to its current 3-star rating (55th percentile). The most pressing issue is a severe chronic absenteeism rate of 32.4%, which is dramatically higher than the district average of 21.2% and nearly double the rates at nearby Northshore High School (19.7%) and Lakeshore High School (16.2%). This absenteeism problem is likely connected to the school's declining graduation rate of 72.6%, which now falls well below the district (82.6%) and state (85.0%) averages. While Slidell High's overall performance lags behind higher-ranked neighbors like Northshore (88th percentile) and Fontainebleau High School (5-star), it shares similar challenges with nearby Salmen High School, including high absenteeism and low graduation rates, suggesting these are community-wide issues.

Despite these challenges, there are bright spots. The school outperforms the state average in U.S. History (63% vs. 55%) and Biology (67% vs. 60%), though it lags behind the district in math subjects like Algebra I (61% vs. 78%). Slidell High also shows a notable strength in serving its African American students, who rank in the 71st percentile (4 stars), a significant improvement from previous years. However, the school struggles with its English Language Learner students, who rank in the bottom 5th percentile statewide, highlighting a critical area needing targeted support. For parents, Slidell High offers a mixed picture: a school with historical strengths and some bright spots, but one that is currently grappling with attendance and graduation challenges that require attention.

1,654
Students ?
14.2
Student/teacher ratio ?
$14,835
Per pupil spending ?
52.3%
Free/discounted lunch ?
 #1 Tiger Drive
       Slidell, LA  70458-2046

(985) 643-2992

District: St. Tammany Parish


Feeder schools for Slidell High School:

Elementary:    Bayou Woods Elementary School
    Bonne Ecole Elementary School
    Florida Avenue Elementary School
    Henry Mayfield Elementary School
Middle:    Carolyn Park Middle
    Slidell Junior High School
Racial breakdown:

White:
45.1%
African American:
37.1%
Hispanic:
10.3%
more
 See top rated Louisiana high schools

 Compare Slidell High School to nearby high schools!
At a glance
Ranking trend: Rebounding — 43rd percentile in 2022 → 55th in 2026
Strengths
Ranking is rebounding — up to 55th (2026) from a 43rd-percentile low (2022)
Above the Louisiana median (55th percentile)
Worth a look
!Graduation rate below the Louisiana average (73% vs 85%)
!High chronic absenteeism (32% vs 22% Louisiana)
!Some student groups rank well below the school's overall statewide standing
Students meeting standards (2025-2026) ?
This school63%
District avg74%
Louisiana avg62%
147th of 325
Louisiana public high schools ?
Top 45%▼ down 29 pts since 2016
From top 16% (2016) to top 45% (2026)
See the entire ranking list of Louisiana High Schools →
SchoolDigger rating ?
6th of 8High Schools in the St. Tammany Parish
18th of 116St. Tammany Parish among Louisiana districts
Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)
Show full rank history (all student groups)

All Students

YearAvg scoreStatewide rankLouisiana percentileRating
202658.2147 of 32554.8%★★★☆☆
202552.1166 of 32949.5%★★☆☆☆
202445.9187 of 33343.8%★★☆☆☆
202348.7175 of 32145.5%★★☆☆☆
202244.5186 of 32642.9%★★☆☆☆
202158.3134 of 32258.4%★★★☆☆
201962.3122 of 31361.0%★★★☆☆
201864.683 of 30272.5%★★★★☆
201774.156 of 29781.1%★★★★☆
201674.849 of 29783.5%★★★★☆
201570.863 of 31279.8%★★★★☆
201474.443 of 30986.1%★★★★☆
201376.839 of 31287.5%★★★★☆
201280.232 of 31089.7%★★★★☆
201168.090 of 30070.0%★★★★☆
201070.573 of 29775.4%★★★★☆
200960.5118 of 30160.8%★★★☆☆
200868.980 of 29172.5%★★★★☆
200774.958 of 29080.0%★★★★☆

African American

YearAvg scoreStatewide rankLouisiana percentileRating
202662.476 of 26070.8%★★★★☆
202553.5107 of 25658.2%★★★☆☆
202453.5107 of 26058.8%★★★☆☆
202354.5102 of 25259.5%★★★☆☆
202241.8145 of 25643.4%★★☆☆☆
202164.263 of 24374.1%★★★★☆
201961.864 of 23372.5%★★★★☆

English Language Learner

YearAvg scoreStatewide rankLouisiana percentileRating
202620.954 of 575.3%☆☆☆☆☆
202521.450 of 5915.3%★☆☆☆☆
202432.533 of 5034.0%★★☆☆☆
202226.932 of 4020.0%★☆☆☆☆
202146.921 of 3844.7%★★☆☆☆

Female

YearAvg scoreStatewide rankLouisiana percentileRating
202657.8147 of 31353.0%★★★☆☆
202554.6157 of 30849.0%★★☆☆☆
202450.9164 of 30846.8%★★☆☆☆
202353.7159 of 30848.4%★★☆☆☆
202243.4185 of 31140.5%★★☆☆☆
202168.184 of 28870.8%★★★★☆
201965.999 of 29266.1%★★★☆☆

Hispanic

YearAvg scoreStatewide rankLouisiana percentileRating
202650.258 of 12553.6%★★★☆☆
202550.860 of 12050.0%★★★☆☆
202434.381 of 11328.3%★☆☆☆☆
202336.574 of 10730.8%★★☆☆☆
202236.267 of 10335.0%★★☆☆☆
202144.154 of 9241.3%★★☆☆☆
201957.833 of 7857.7%★★★☆☆

Low Socio Economic Status

YearAvg scoreStatewide rankLouisiana percentileRating
202650.7155 of 32151.7%★★★☆☆
202547.2173 of 32346.4%★★☆☆☆
202439.8205 of 32837.5%★★☆☆☆
202340.0201 of 32137.4%★★☆☆☆
202235.7208 of 32235.4%★★☆☆☆
202154.9125 of 28556.1%★★★☆☆
201959.1113 of 30162.5%★★★☆☆

Male

YearAvg scoreStatewide rankLouisiana percentileRating
202659.0126 of 31159.5%★★★☆☆
202550.0155 of 31350.5%★★★☆☆
202442.9178 of 31543.5%★★☆☆☆
202344.0180 of 30641.2%★★☆☆☆
202243.7165 of 30145.2%★★☆☆☆
202154.2135 of 29253.8%★★★☆☆
201957.8123 of 29157.7%★★★☆☆

Multi-racial

YearAvg scoreStatewide rankLouisiana percentileRating
202643.045 of 6732.8%★★☆☆☆
202539.446 of 6630.3%★★☆☆☆
202433.650 of 6320.6%★☆☆☆☆
202339.835 of 5030.0%★★☆☆☆
202223.239 of 4717.0%★☆☆☆☆
202143.624 of 3938.5%★★☆☆☆

Special Education

YearAvg scoreStatewide rankLouisiana percentileRating
202653.356 of 16866.7%★★★☆☆
202562.149 of 17071.2%★★★★☆
202439.996 of 16541.8%★★☆☆☆
202348.269 of 13850.0%★★★☆☆
202247.666 of 13952.5%★★★☆☆
202156.348 of 13564.4%★★★☆☆
201951.948 of 12260.7%★★★☆☆

White

YearAvg scoreStatewide rankLouisiana percentileRating
202653.7119 of 24451.2%★★★☆☆
202547.8135 of 24544.9%★★☆☆☆
202433.9184 of 24825.8%★☆☆☆☆
202333.7185 of 24925.7%★☆☆☆☆
202237.9169 of 25032.4%★★☆☆☆
202151.6120 of 24551.0%★★★☆☆
201957.2107 of 24957.0%★★★☆☆
How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)
African American (2026)71st percentile+16 vs school
Special Education (2026)67th percentile+12 vs school
Male (2026)59th percentile+5 vs school
Hispanic (2026)54th percentile~ school
Female (2026)53rd percentile~ school
Low Socio Economic Status (2026)52nd percentile-3 vs school
White (2026)51st percentile-4 vs school
Multi-racial (2026)33rd percentile-22 vs school
English Language Learner (2026)5th percentile-50 vs school
By subject vs Louisiana (2025-2026) ?
English II69%~ state avg
Biology67%+7 vs state
U.S. History63%+8 vs state
English I63%-3 vs state
Algebra I61%-4 vs state
Geometry56%~ state avg

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Frequently Asked Questions about Slidell High School

Slidell High School ranks 147th of 325 Louisiana high schools. SchoolDigger rates this school 3 stars out of 5.

Students at Slidell High School are 45% White, 37% African American, 10% Hispanic, 6% Two or more races.

In the 2024-25 school year, 1,654 students attended Slidell High School.

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Latest Louisiana data All new data »
2025–26 LEAP test scoresJul 6, 2026
2023–24 dropout ratesFeb 24, 2026
2023–24 school spending dataDec 1, 2025
2023–24 through 2024–25 graduation ratesNov 22, 2025


SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the Louisiana Dept of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.





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