Very Good
#325 of 990 schools in CT
Top 33% in state
Mark T. Sheehan High School
High School · Wallingford School District
142 Hope Hill Road, Wallingford, CT 06492
Enrollment
724
Student-Teacher
11.5:1
Score
7.2
Grades
9th – 12th
Enrollment
724
Student-Teacher
11.5:1
Score
7.2
Grades
9th – 12th
Updated
2022-23
Updated 2022-23
How this school compares
In Wallingford
#7 of 11
public schools
Connecticut high schools
#62 of 196
In district
#8 of 12
Wallingford School District
School environment
8.2 / 10
Very strong
About Mark T. Sheehan High School
Mark T. Sheehan High School is a regular public high school located in Wallingford, Connecticut, serving students from ninth to twelfth grade. With an enrollment of 724 students and a student-teacher ratio of 11.5:1, the school provides personalized attention within its large suburban setting.
The faculty consists of 63 full-time equivalent teachers dedicated to supporting students' educational needs. The academic performance at Sheehan High School shows room for growth. According to MySchoolScout ratings, the school is ranked #326 out of 996 schools in Connecticut, placing it in the 67th percentile overall.
In terms of proficiency scores, 61% of students are proficient or above in English Language Arts (ELA) and reading, while 39% are proficient or above in math. Sheehan High School sits in a bustling suburban area where students have access to various resources and opportunities outside the classroom.
Score Breakdown
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Mark T. Sheehan High School — Students at Mark T. Sheehan High School score 52% proficient, which is below what's typical for similar communities (expected: 56%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
30.1%
Students qualifying for federal meal assistance
Test Scores CT EDFACTS (2021-22)
Based on 6 test records from CT state assessments. About our data
Proficiency Trend
↓ DecliningAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 6.7/10.
How Mark T. Sheehan High School Compares
See how Mark T. Sheehan High School performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Performance Trends
Math proficiency has declined from 47% (2019) to 42% (2022). Reading/ELA proficiency has declined from 67% (2019) to 62% (2022).
Location
142 Hope Hill Road, Wallingford, CT 06492
Nearby Alternatives
Families considering Mark T. Sheehan High School may also want to explore other high schools in the area. Lyman Hall High School (rated 7.3/10, 3.4 miles away), with a very similar rating. Another option is CHOATE ROSEMARY HALL (rated 6.6/10, 2.2 miles away), with a comparable rating. Additionally, Orville H. Platt High School (rated 5.3/10, 3.4 miles away, in nearby Meriden), a more accessible option. For more schools in Wallingford, see our Wallingford schools guide .
Nearby Schools
20 within 3.7 mi| School | Distance | Rating |
|---|---|---|
| James H. Moran Middle School Wallingford | 0.2 mi | 5.7 |
| Highland School Wallingford | 0.3 mi | 6.5 |
| Parker Farms School Wallingford | 0.8 mi | 7.6 |
| Mary G. Fritz Elementary School of Yalesville Yalesville | 0.7 mi | 8.9 |
| BENHAVEN SCHOOL Wallingford | 1.0 mi | 7.6 |
| BENHAVEN ACADEMY Wallingford | 1.0 mi | 5.0 |
| B.E.S.T. ACADEMY Walenford | 1.7 mi | 5.9 |
| HIGH ROAD SCHOOL OF WALLINGFORD-HS Wallingford | 1.7 mi | 5.6 |
| Moses Y. Beach School Wallingford | 2.1 mi | 7.1 |
| Hanover School Meriden | 2.3 mi | 7.6 |
| HOLY TRINITY SCHOOL Wallingford | 2.3 mi | 5.5 |
| CHOATE ROSEMARY HALL Wallingford | 2.2 mi | 6.6 |
| Cook Hill School Wallingford | 2.3 mi | 7.3 |
| H. C. Wilcox Technical High School Meriden | 3.0 mi | 3.7 |
| BOULDER KNOLL MONTESSORI SCHOOL Cheshire | 2.5 mi | — |
| Casimir Pulaski School Meriden | 3.1 mi | 4.7 |
| Orville H. Platt High School Meriden | 3.4 mi | 5.3 |
| Lyman Hall High School Wallingford | 3.4 mi | 7.3 |
| Lincoln Middle School Meriden | 3.6 mi | 6.9 |
| Dag Hammarskjold Middle School Wallingford | 3.7 mi | 6.0 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 06492 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$101,757
Median Home Value
$328,400
Median Rent
$1,346/mo
Population
44,099
College Educated
39%
Homeownership
72.3%
Avg Commute
24.1 min
Poverty Rate
5.7%
Median Age
43.8
Community Profile
The community surrounding Mark T. Sheehan High School has a median household income of $101,757. It is an area where 39% of adults hold a bachelor's degree or higher. The median home value in the area is $328,400, with a median rent of $1,346/month. The local poverty rate of 5.7% is relatively low. The average commute for residents is 24 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Cooperative High School - Inter-District Magnet New Haven, CT | 7.2 |
| THE HOTCHKISS SCHOOL Lakeville, CT | 7.2 |
| Lyman Hall High School Wallingford, CT | 7.3 |
| Suffield High School West Suffield, CT | 7.3 |
| Brookfield High School Brookfield, CT | 7.1 |
| Granby Memorial High School Granby, CT | 7.1 |
Frequently Asked Questions
Common questions about Mark T. Sheehan High School
What grades does Mark T. Sheehan High School serve?
Mark T. Sheehan High School serves students in grades 9th through 12th.
How many students attend Mark T. Sheehan High School?
Mark T. Sheehan High School has an enrollment of approximately 724 students.
What is the student-teacher ratio at Mark T. Sheehan High School?
The student-teacher ratio at Mark T. Sheehan High School is 11.5:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Mark T. Sheehan High School rank in CT?
Mark T. Sheehan High School is ranked #325 out of 990 schools in CT.
What is Mark T. Sheehan High School's MySchoolScout rating?
Mark T. Sheehan High School has a composite rating of 7.2 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.
What are the test scores at Mark T. Sheehan High School?
Based on the most recent state assessment data, Mark T. Sheehan High School has 39.0% math proficiency and 60.7% reading/ELA proficiency.
Is Mark T. Sheehan High School a charter school?
No, Mark T. Sheehan High School is not a charter school. It is a traditional public school operated by the local school district.
Is Mark T. Sheehan High School a Title I school?
No, Mark T. Sheehan High School is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Mark T. Sheehan High School?
30.1% of students at Mark T. Sheehan High School qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Explore More Schools
Neighborhood Context
Powered by 
FBI UCR 2024. City-level (Wallingford). Data >1 year old.
Quick Facts NCES CCD (SY 2022-23)
- Grades
- 9th – 12th
- Enrollment
- 724
- Student-Teacher Ratio
- 11.5:1
- Teachers (FTE)
- 63
- Free/Reduced Lunch
- 30.1%
- Type
- regular
- Setting
- Large Suburb
- County
- Connecticut Planning Region 7
- Phone
- (203) 294-5900
- Data Year
- 2023–2024
Resources & Links
District
Wallingford School District- District Enrollment
- 5,292
- Schools in District
- 12
- Per-Pupil Spending
- $26,268
- District Rank
- #8 of 12
Other Schools in This District
How We Rate Schools
Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
Read our full methodologyRelated reading
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