Mark T. Sheehan High School vs Plainville High School
A head-to-head comparison of two high schools in Connecticut, United States, 20 km apart, using official American 2025 data. The better value in each row is highlighted.
Mark T. Sheehan High School
Wallingford · Public high · Grades 9–12
673 students
Plainville High School
Plainville · Public high · Grades 9–12
674 students
| Measure | Mark T. Sheehan High School Wallingford, Connecticut | Plainville High School Plainville, Connecticut |
|---|---|---|
| Success Index (US) | 71 Top 25% | 57 Top 50% |
| State rank | #75 of 180 | #96 of 180 |
| National rank | #3102 of 16,910 | #6505 of 16,910 |
| Sector | Public | Public |
| Type | High | High |
| Year range | Grades 9–12 | Grades 9–12 |
| Students | 673 | 674 |
| Enrollment | 673 | 674 |
| Free/reduced-price lunch | 31.5% | 43.3% |
| Students per teacher | 11.2 | 11.6 |
| Reading proficiency | 67% | 57% |
| Math proficiency | 47% | 37% |
| city | Wallingford | Plainville |
| state | Connecticut | Connecticut |
| Website | – | – |
The verdict
- •Mark T. Sheehan High School scores higher on the Success Index (US) (70.8 vs 57.3).
- •Mark T. Sheehan High School does better on math proficiency (47% vs 37%).
- •Mark T. Sheehan High School does better on reading proficiency (67% vs 57%).
- •Mark T. Sheehan High School does better on community advantage (fewer free/reduced-price lunch) (31.5% vs 43.3%).
- •Mark T. Sheehan High School does better on students per teacher (11.2 vs 11.6).
- •Plainville High School is the larger school with 674 students compared with 673.
The Success Index (US) summarises published results and context from official data. It does not measure teaching quality or fit. Methodology.
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Frequently asked questions
Is Mark T. Sheehan High School better than Plainville High School?
On the Success Index (US), Mark T. Sheehan High School ranks higher (70.8 vs 57.3 out of 100). The index is built from published results and context data, not from teaching quality or fit, so visit both schools before deciding.
How far apart are Mark T. Sheehan High School and Plainville High School?
About 20 km in a straight line, between Wallingford and Plainville in Connecticut.
Which has the better Enrollment?
Mark T. Sheehan High School: 673. Plainville High School: 674. Students enrolled in the latest NCES directory year.
How do Mark T. Sheehan High School and Plainville High School rank in Connecticut?
Mark T. Sheehan High School is 75th of 180 and Plainville High School is 96th of 180 among high schools in Connecticut on the 2025 Success Index (US).