Benhaven Academy
Private · Grades 8–12 · 27 students
Mark T. Sheehan High School
142 Hope Hill Road, Wallingford, CT 06492
Grades
9–12
High
Students
673
Enrolled 2024–25
Students per teacher
11.1 : 1
Full-time teachers
District
Wallingford School District
South Central Connecticut Planning Region
Schola Grade B · Above average
Letter grade (A–F) · compared with 194 Connecticut high schools · How we grade
Percentiles compare this school with other Connecticut high schools; the line marks the middle. Data: test scores 2021–22, graduation and absenteeism 2022–23 (U.S. Department of Education, EDFacts); coursework 2023–24 (Civil Rights Data Collection); staffing 2024–25 (NCES).
About Mark T. Sheehan High School
Mark T. Sheehan High School is a public high school in Wallingford, Connecticut, serving grades 9–12. It is part of Wallingford School District. The school is located in a large suburb in South Central Connecticut Planning Region.
In the 2024–25 school year, 673 students were enrolled, with about 11.1 students for every full-time teacher. That ratio is close to the typical Connecticut high school (11.1 students per teacher). Its Schola Grade is B (above average), compared with 194 Connecticut high schools.
Grades & enrollment
Students per grade, 2024–25Grades 9–12
Location & nearby schools
School details
- Type
- Public School · What this means
- Level
- High
- Grades offered
- 9–12
- Enrollment (2024–25)
- 673 students
- Students per teacher
- 11.1 to 1
- AP courses offered
- 21
- Charter school
- No
- Magnet school
- No
- Virtual learning
- Offers virtual courses
- Locale
- Suburb — Large
- School district
- Wallingford School District
- County
- South Central Connecticut Planning Region
- NCES school ID
- 090474000956
Schools near Mark T. Sheehan High School
All 16 schools in Wallingford →
Choate Rosemary Hall
Private · Grades 9–12 · 842 students
H. C. Wilcox Technical High School
CTE · Grades 9–12 · 753 students
Orville H. Platt High School
Public · Grades 9–12 · 1,191 students
Lyman Hall High School
Public · Grades 9–12 · 936 students
The Cheshire Academy
Private · Grades 9–12 · 341 students
School data comes from the U.S. Department of Education: the National Center for Education Statistics (NCES) Common Core of Data and EDGE school locations (2024–25) and Private School Survey (2023–24), the Civil Rights Data Collection (2023–24), and EDFacts (test results 2021–22; graduation and chronic absenteeism 2022–23), plus other public sources. Please contact the school to confirm enrollment, programs, and other details. How we source data.