Slidell High School is a public school for grades nine through twelve located in Slidell, Louisiana, United States. It is part of the St. Tammany Parish Public School District and serves portions of west and central Slidell as well as a section of Lacombe.
Serving 1,833 students in grades 9-12, Slidell High School ranks in the top 50% of all schools in Louisiana for overall test scores (math proficiency is top 50%, and reading proficiency is top 50%).
The percentage of students achieving proficiency in math is 39% (which is higher than the Louisiana state average of 34%). The percentage of students achieving proficiency in reading/language arts is 42% (which is equal to the Louisiana state average of 42%).
The student-teacher ratio of 15:1 is higher than the Louisiana state level of 14:1.
Minority enrollment is 53% of the student body (majority Black), which is lower than the Louisiana state average of 59% (majority Black).
Quick Facts (2025)
- Grades: 9-12
- Enrollment: 1,833 students
- Student-Teacher Ratio: 15:1
- Minority Enrollment: 53%
- Graduation Rate: 78% (Btm 50% in LA)
- Overall Testing Rank: Top 50%
- Math Proficiency: 39% (Top 50%)
- Reading Proficiency: 42% (Top 50%)
- Science Proficiency: 23% (Top 50%)
- Source: National Center for Education Statistics (NCES), LA Dept. of Education
Top Rankings
Slidell High School ranks among the top 20% of public schools in Louisiana for:
Category
Attribute
Diversity
School Overview
Slidell High School's student population of 1,833 students has grown by 7% over five school years.
The teacher population of 124 teachers has grown by 40% over five school years.
Grades Offered
Grades 9-12
(No virtual instruction)
(No virtual instruction)
Total Students
1,833 students
Gender %
Total Classroom Teachers
124 teachers
Year Founded
1908
Colors
White, Kelly green
School Calendar
Last Day of School
Fri. May 22, 2026
School Motto
Truth shines a guiding light
School Rankings
Slidell High School ranks within the top 50% of all 1,244 schools in Louisiana (based off of combined math and reading proficiency testing data).
The diversity score of Slidell High School is 0.64, which is less than the diversity score at state average of 0.65. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#455 out of 1244 schools
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
39%
34%
Reading/Language Arts Test Scores (% Proficient)
42%
42%
Science Test Scores (% Proficient)
23%
27%
Student-Teacher Ratio
15:1
14:1
American Indian
n/a
1%
Asian
1%
2%
Hispanic
10%
11%
Black
37%
41%
White
47%
41%
Hawaiian
n/a
n/a
Two or more races
5%
4%
All Ethnic Groups
Graduation Rate
78%
83%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
47%
57%
Eligible for Reduced Lunch
9%
5%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), LA Dept. of Education
School Notes
- School Mascot: Slidell Bengal Tiger
Profile last updated: 02/09/2025
Frequently Asked Questions
What is Slidell High School's ranking?
Slidell High School is ranked #455 out of 1,244 schools, which ranks it among the top 50% of public schools in Louisiana.
What schools are Slidell High School often compared to?
Slidell High Schoolis often viewed alongside schools like Northshore High School, Salmen High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
39% of students have achieved math proficiency (compared to the 34% LA state average), while 42% of students have achieved reading proficiency (compared to the 42% LA state average).
What is the graduation rate of Slidell High School?
The graduation rate of Slidell High School is 78%, which is lower than the Louisiana state average of 83%.
How many students attend Slidell High School?
1,833 students attend Slidell High School.
What is the racial composition of the student body?
47% of Slidell High School students are White, 37% of students are Black, 10% of students are Hispanic, 5% of students are Two or more races, and 1% of students are Asian.
What is the student-teacher ratio of Slidell High School?
Slidell High School has a student ration of 15:1, which is higher than the Louisiana state average of 14:1.
What grades does Slidell High School offer ?
Slidell High School offers enrollment in grades 9-12 (No virtual instruction).
What school district is Slidell High School part of?
Slidell High School is part of St. Tammany Parish School District.
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