Lyme-Old Lyme High School
🇺🇸 Official data · 2025Old Lyme, Connecticut 06371 · Regional School District 18
#5 of 180 high schools in Connecticut
#149 of 16,910 nationally
About Lyme-Old Lyme High School
Lyme-Old Lyme High School is a public high located in Old Lyme, in the Regional School District 18 school district of Connecticut, United States. It caters for Grades 9–12. In 2025 it enrolled 367 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 91.9 out of 100, placing it in the top 5% of high schools in United States and 5th of 180 ranked high schools in Connecticut. Its strongest component is community advantage (fewer free/reduced-price lunch) (97th percentile), and its weakest is students per teacher (89th percentile).
Other published figures: enrollment 367.
There are 3 schools in Old Lyme; Lyme-Old Lyme High School ranks 2nd of 3 scored schools there.
Success Index (US) breakdown
Each component is a percentile against high schools across United States.
- Math proficiency (30%)77%
- Reading proficiency (30%)87%
- Community advantage (fewer free/reduced-price lunch) (25%)12.8%
- Students per teacher (15%)9.7
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Lyme-Old Lyme High School by the official sources.
- Enrollment
- 367
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 12.8%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 9.7
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 87%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 77%
- Share of tested students proficient or above (all students, all grades).
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Schools near Lyme-Old Lyme High School
Closest schools by straight-line distance, with their Success Index (US).
Lyme-Old Lyme Middle School
Old Lyme · Public middle · Grades 6–8
271 students · 212 m away
Mile Creek School
Old Lyme · Public elementary · Grades K–5
334 students · 4.3 km away
Old Saybrook Middle School
Old Saybrook · Public middle · Grades 5–8
307 students · 5.0 km away
Kathleen E. Goodwin School
Old Saybrook · Public elementary · Grades PK–4
383 students · 5.9 km away
Old Saybrook Senior High School
Old Saybrook · Public high · Grades 9–12
338 students · 6.8 km away
Essex Elementary School
Centerbrook · Public elementary · Grades PK–6
307 students · 8.6 km away
Lillie B. Haynes School
Niantic · Public elementary · Grades K–4
365 students · 9.8 km away
East Lyme Middle School
Niantic · Public middle · Grades 5–8
716 students · 10.0 km away
Niantic Center School
Niantic · Public elementary · Grades K–4
198 students · 10 km away
Daisy Ingraham School
Westbrook · Public elementary · Grades PK–5
292 students · 10 km away
Similar schools
Public high schools in Connecticut with a comparable Enrollment.
Derby High School
Derby · Public high · Grades 9–12
360 students
Pathways Academy of Technology and Design
East Hartford · Public high · Grades 9–12
359 students
Somers High School
Somers · Public high · Grades 9–12
359 students
Biotechnology Research & Zoological Studies Magnet High Scho
Bridgeport · Public high · Grades 9–12
376 students
Stafford High School
Stafford Springs · Public high · Grades 9–12
357 students
Coginchaug Regional High School
Durham · Public high · Grades 9–12
356 students
Frequently asked questions
Is Lyme-Old Lyme High School a good school?
Lyme-Old Lyme High School has a Success Index (US) of 91.9 out of 100 (Top 5% of high schools in United States) and ranks #5 of 180 in Connecticut. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Lyme-Old Lyme High School rank in Connecticut?
Lyme-Old Lyme High School ranks #5 of 180 high schools in Connecticut and #149 of 16,910 nationally on the Success Index (US) (2025 data).
How many students attend Lyme-Old Lyme High School?
Lyme-Old Lyme High School had 367 students in 2025.
Is Lyme-Old Lyme High School a elementary school or a high school?
Lyme-Old Lyme High School is classified as a high covering Grades 9–12. It is a public school.
What other schools are near Lyme-Old Lyme High School?
There are 10 schools within 15 km of Lyme-Old Lyme High School; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.