Sedro Woolley Senior High School
1,276
Students
21.5:1
S:T Ratio
School Snapshot
Key metrics at a glance1,104
B+
5
B
4%
C
22:1
B-
This Week at Sedro Woolley Senior – May 24, 2026
174 students practicing on Varsity Tutors
Academic Resources
Typical courses and practice resources for students at Sedro Woolley Senior High School
Standardized Test Dates
Upcoming national, state, and school calendar dates that affect students at Sedro Woolley Senior High School.
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
State Assessments
March 2, 2026 – June 26, 2026
Smarter Balanced Assessment
School Milestones
May 21, 2026 – May 29, 2026
School End/Summer Start
May 28, 2026
School End/Summer Start
June 2, 2026 – June 17, 2026
Graduation
June 4, 2026
School End/Summer Start
June 17, 2026
School End/Summer Start
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1235 Third Street, Sedro-Woolley, WA 98284
(360)855-3510
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Sedro-Woolley School District
Teachers & Staff
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Academic Calendar
Important dates, holidays, and school events