Haddam-Killingworth Middle School vs Plainfield Central School
A head-to-head comparison of two middle schools in Connecticut, United States, 62 km apart, using official American 2025 data. The better value in each row is highlighted.
Haddam-Killingworth Middle School
Killingworth · Public middle · Grades 6–8
423 students
Plainfield Central School
Plainfield · Public middle · Grades 6–8
422 students
| Measure | Haddam-Killingworth Middle School Killingworth, Connecticut | Plainfield Central School Plainfield, Connecticut |
|---|---|---|
| Success Index (US) | 85 Top 10% | 62 Top 50% |
| State rank | #50 of 178 | #111 of 178 |
| National rank | #814 of 15,369 | #5088 of 15,369 |
| Sector | Public | Public |
| Type | Middle | Middle |
| Year range | Grades 6–8 | Grades 6–8 |
| Students | 423 | 422 |
| Enrollment | 423 | 422 |
| Free/reduced-price lunch | 15.6% | 55.9% |
| Students per teacher | 11.4 | 10.0 |
| Reading proficiency | 71% | 62% |
| Math proficiency | 58% | 40% |
| city | Killingworth | Plainfield |
| state | Connecticut | Connecticut |
| Website | – | – |
The verdict
- •Haddam-Killingworth Middle School scores higher on the Success Index (US) (84.5 vs 61.8).
- •Haddam-Killingworth Middle School does better on math proficiency (58% vs 40%).
- •Haddam-Killingworth Middle School does better on reading proficiency (71% vs 62%).
- •Haddam-Killingworth Middle School does better on community advantage (fewer free/reduced-price lunch) (15.6% vs 55.9%).
- •Plainfield Central School does better on students per teacher (10.0 vs 11.4).
- •Haddam-Killingworth Middle School is the larger school with 423 students compared with 422.
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 Haddam-Killingworth Middle School better than Plainfield Central School?
On the Success Index (US), Haddam-Killingworth Middle School ranks higher (84.5 vs 61.8 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 Haddam-Killingworth Middle School and Plainfield Central School?
About 62 km in a straight line, between Killingworth and Plainfield in Connecticut.
Which has the better Enrollment?
Haddam-Killingworth Middle School: 423. Plainfield Central School: 422. Students enrolled in the latest NCES directory year.
How do Haddam-Killingworth Middle School and Plainfield Central School rank in Connecticut?
Haddam-Killingworth Middle School is 50th of 178 and Plainfield Central School is 111th of 178 among middle schools in Connecticut on the 2025 Success Index (US).