A
Lyme-Old Lyme High School
PublicHighGrades 9–12
69 Lyme St., Old Lyme, CT 06371 · (860) 434-1651 · Part of Regional School District 18
Students
367
Students per teacher
10:1
Free or reduced lunch
13%
Setting
Rural
Grades
9–12
What stands out about Lyme-Old Lyme High School
- School Grade A: near the top of Connecticut’s public schools
- Math proficiency 29 pts above the state
- Reading / language arts 26 pts above the state
- Small classes: 10:1 students per teacher
- Enrollment down 18.4% since 2020
Test scores
EDFacts via Urban Institute Education Data Portal (SY2020-21) · 2020–21Math proficiency67%
State average 37.9%
Reading / language arts77%
State average 50.7%
Location
Directions ↗
69 Lyme St., Old Lyme
Students
Enrollment by grade
Grade 986
Grade 1088
Grade 1190
Grade 12103
Enrollment over time
450’20
444’21
407’22
392’23
367’24
Down 18.4% since 2020.
Who goes here
White 82%Hispanic 8%Asian 5%Two or more races 4%Black <1%
As reported to NCES, share of students with a reported race or ethnicity.
What neighbors say
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Parents talk
Conversations in Town Square that mention Lyme-Old Lyme High School.
Other schools in Regional School District 18
School facts: U.S. Department of Education (NCES), 2024-2025 school year. Scores: EDFacts via Urban Institute Education Data Portal (SY2020-21). The School Grade is our own summary of state test results. Neighbor ratings are opinions, not an official measure of school quality.