Mark T. Sheehan High School
Public
High Grades 9–12 Virtual
Part of Wallingford School District
142 Hope Hill Road, Wallingford, CT 06492 · (203) 294-5900
Community ratings
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Academic performance
Math proficiency28%
State average 37.9%
Reading / language arts53%
State average 50.7%
EDFacts via Urban Institute Education Data Portal (SY2020-21)
At a glance
673Students enrolled
11:1Student–teacher ratio
32%Free / reduced lunch
SuburbSetting
Regular SchoolSchool type
Enrollment by grade
Grade 9137
Grade 10186
Grade 11174
Grade 12176
Students
White · 65%437
Hispanic · 22%145
Asian · 6%43
Two or more races · 4%30
Black · 2%16
American Indian/Alaska Native · 0%1
Native Hawaiian/Pacific Islander · 0%1
Counts as reported to NCES; percentages are of students with a reported race/ethnicity.
Enrollment · last 5 years
760’20
746’21
722’22
724’23
673’24
Location
142 Hope Hill Road Wallingford
Neighbor reviews
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School facts from the U.S. Department of Education (NCES), 2024-2025 school year. Academic scores from the EDFacts via Urban Institute Education Data Portal (SY2020-21). Community ratings and reviews reflect neighbor opinions, not an official measure of school quality.