Derby High School vs Lyme-Old Lyme High School
A head-to-head comparison of two high schools in Connecticut, United States, 65 km apart, using official American 2025 data. The better value in each row is highlighted.
Derby High School
Derby · Public high · Grades 9–12
360 students
Lyme-Old Lyme High School
Old Lyme · Public high · Grades 9–12
367 students
| Measure | Derby High School Derby, Connecticut | Lyme-Old Lyme High School Old Lyme, Connecticut |
|---|---|---|
| Success Index (US) | 37 Lower 50% | 92 Top 5% |
| State rank | #137 of 180 | #5 of 180 |
| National rank | #11735 of 16,910 | #149 of 16,910 |
| Sector | Public | Public |
| Type | High | High |
| Year range | Grades 9–12 | Grades 9–12 |
| Students | 360 | 367 |
| Enrollment | 360 | 367 |
| Free/reduced-price lunch | 53.6% | 12.8% |
| Students per teacher | 9.7 | 9.7 |
| Reading proficiency | 42% | 87% |
| Math proficiency | 12% | 77% |
| city | Derby | Old Lyme |
| state | Connecticut | Connecticut |
| Website | – | – |
The verdict
- •Lyme-Old Lyme High School scores higher on the Success Index (US) (91.9 vs 36.9).
- •Lyme-Old Lyme High School does better on math proficiency (77% vs 12%).
- •Lyme-Old Lyme High School does better on reading proficiency (87% vs 42%).
- •Lyme-Old Lyme High School does better on community advantage (fewer free/reduced-price lunch) (12.8% vs 53.6%).
- •Lyme-Old Lyme High School is the larger school with 367 students compared with 360.
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 Derby High School better than Lyme-Old Lyme High School?
On the Success Index (US), Lyme-Old Lyme High School ranks higher (91.9 vs 36.9 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 Derby High School and Lyme-Old Lyme High School?
About 65 km in a straight line, between Derby and Old Lyme in Connecticut.
Which has the better Enrollment?
Derby High School: 360. Lyme-Old Lyme High School: 367. Students enrolled in the latest NCES directory year.
How do Derby High School and Lyme-Old Lyme High School rank in Connecticut?
Derby High School is 137th of 180 and Lyme-Old Lyme High School is 5th of 180 among high schools in Connecticut on the 2025 Success Index (US).