Mark T. Sheehan High School
#3
Best ACT in Connecticut High Schools
722
Students
10.4:1
S:T Ratio
School Snapshot
Key metrics at a glance1,200
A-
31
A+
24
A+
28%
C
10:1
A
92%
A+
55%
B
25%
C
This Week at Mark T. Sheehan – April 15, 2026
89 students practicing on Varsity Tutors
Academic Resources
Typical courses and practice resources for students at Mark T. Sheehan High School
After Mark T. Sheehan High
Where graduates go and what they studyUniversity of Connecticut
Southern Connecticut State University
Quinnipiac University
Central Connecticut State University
University of New Haven
University of Rhode Island
University of Hartford
Boston University
Psychology
Nursing
Biology
Business
Mechanical Engineering
Marketing
Computer Science
Physical Therapy
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142 Hope Hill Road, Wallingford, CT 06492
(203)294-5900
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Wallingford School District
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