Harlingen High School - South
1,571
Students
14.2:1
S:T Ratio
School Snapshot
Key metrics at a glance1,028
B
20
B-
22
A+
30%
C+
14:1
B+
This Week at Harlingen High School - South – May 23, 2026
214 students practicing on Varsity Tutors
Academic Resources
Typical courses and practice resources for students at Harlingen High School - South
Standardized Test Dates
Upcoming national, state, and school calendar dates that affect students at Harlingen High School - South.
National Tests
April 21, 2026 – May 29, 2026
ACT — School Day - Late Spring Online
May 14, 2026 – May 28, 2026
SAT — School Day
May 16, 2026 – May 30, 2026
SAT Score Release Date
May 26, 2026
SAT *Late Registration/Changes/Cancellations Deadline
May 29, 2026
ACT
June 5, 2026
ACT
School Milestones
May 21, 2026 – May 29, 2026
School End/Summer Start
May 22, 2026 – June 4, 2026
School End/Summer Start
May 23, 2026 – June 7, 2026
Graduation
May 28, 2026
School End/Summer Start
June 4, 2026
School End/Summer Start
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1701 Dixieland Rd, Harlingen, TX 78552
(956)427-3800
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Harlingen CISD
Academic Calendar
Important dates, holidays, and school events