Slidell High School
#46
Best ACT in Louisiana High Schools
1,883
Students
20.2:1
S:T Ratio
School Snapshot
Key metrics at a glance1,220
A-
22
B
2
C+
3%
C
20:1
B-
82%
A
This Week at Slidell – September 11, 2026
256 students practicing on Varsity Tutors
Academic Resources
Typical courses and practice resources for students at Slidell High School
Standardized Test Dates
Upcoming national, state, and school calendar dates that affect students at Slidell High School.
National Tests
August 1, 2026 – November 30, 2026
ISEE — Fall Testing Season
August 3, 2026 – June 30, 2027
SSAT — Flex Testing
September 11, 2026
ACT — National
September 12, 2026
SAT — National
September 14, 2026
ACT — National
September 18, 2026
SAT — National
State Assessments
August 1, 2026 – June 30, 2027
ELPS
November 30, 2026 – December 18, 2026
LEAP 2025 High School — Fall Window
February 15, 2027 – March 19, 2027
ELPT/ELPT Connect
February 23, 2027 – March 5, 2027
ACT — Window 1
March 9, 2027 – March 19, 2027
ACT — Window 2
April 1, 2027 – May 12, 2027
LEAP 2025 High School — Spring Window
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#1 Tiger Drive, Slidell, LA 70458
(985)643-2992
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St Tammany Parish Public Schools