Excellent
#72 of 990 schools in CT
Top 7% in state
Lyme-old Lyme High School
High School · Regional School District 18
69 Lyme St., Old Lyme, CT 06371
Enrollment
392
Student-Teacher
9.8:1
Score
9.0
Grades
9th – 12th
Enrollment
392
Student-Teacher
9.8:1
Score
9.0
Grades
9th – 12th
Data vintage
2022-23
Data vintage2022-23
How this school compares
Connecticut schools
#72 of 990
In Old Lyme
#2 of 4
public schools
In district
#3 of 5
Regional School District 18
Academic performance
9.2 / 10
Excellent
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Lyme-old Lyme High School
High School in Old Lyme · grades 9th – 12th. Start here, then compare fit against nearby and district options.
Lyme-old Lyme Middle School
0.1 mi away. Use as a geographic alternative in the same move search.
Center School
0.2 mi away. Use as a geographic alternative in the same move search.
About Lyme-old Lyme High School
Lyme-old Lyme High School is a public high school in Old Lyme, CT, part of Regional School District 18. Lyme-old Lyme High School serves approximately 392 students, and covers grades 9th-12th, and has a 9.8:1 student-teacher ratio. Lyme-old Lyme High School has a current MySchoolScout rating of 9.0 out of 10 and ranks #72 of 990 schools in CT.
Structured state assessment records for Lyme-old Lyme High School show 76% math proficiency (multi-year average, 2009-2022) and 86% reading/ELA proficiency (multi-year average, 2009-2022).
What's said publicly about Lyme-old Lyme High School
Synthesized from public, attributable sources. Updated May 2026. Reviewed for accuracy.
Sources (1)
- This school 9.0 · Excellent
- CT avg 6.1
What Parents Should Know
At 9.8:1 students to teachers, Lyme-old Lyme High School sits well below the national average. Smaller classes like that usually mean more one-on-one time between students and teachers.
Lyme-old Lyme High School sits in a rural area, which can mean longer drives for some families. Rural schools are often community anchors with smaller classes, but check transportation, after-school options, and access to specialized services before you commit.
Score Breakdown
Full Profile · 4/4 metricsView breakdown
View breakdown
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Lyme-old Lyme High School — Students at Lyme-old Lyme High School score 77% proficient, which is above what's typical for similar communities (expected: 69%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
13.5%
Students qualifying for federal meal assistance
Test Scores CT EDFACTS (2021-22)
Based on 26 test records from CT state assessments. About our data
Proficiency Trend
↓ DecliningAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 9.1/10.
How Lyme-old Lyme High School Compares
See how Lyme-old Lyme High School performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Programs & Offerings
Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more
Location
69 Lyme St., Old Lyme, CT 06371
Nearby Alternatives
Families considering Lyme-old Lyme High School may also want to explore other high schools in the area. East Lyme High School (rated 8.2/10, 6.8 miles away, in nearby East Lyme), with a comparable rating. Another option is Westbrook High School (rated 8.0/10, 6.8 miles away, in nearby Westbrook), with a comparable rating. Additionally, Old Saybrook Senior High School (rated 7.6/10, 4.2 miles away, in nearby Old Saybrook), a more accessible option. For more schools in Old Lyme, see our Old Lyme schools guide .
Nearby Schools
20 within 6.8 mi| School | Distance | Rating |
|---|---|---|
| Lyme-Old Lyme Middle School Old Lyme | 0.1 mi | 8.6 |
| Center School Old Lyme | 0.2 mi | 5.8 |
| THE CHILDREN'S TREE MONTESSORI SCHOOL Old Saybrook | 1.7 mi | 6.7 |
| Mile Creek School Old Lyme | 2.6 mi | 9.2 |
| Old Saybrook Middle School Old Saybrook | 3.1 mi | 7.7 |
| ST JOHN SCHOOL Old Saybrook | 3.3 mi | 4.6 |
| Kathleen E. Goodwin School Old Saybrook | 3.7 mi | 8.1 |
| Old Saybrook Senior High School Old Saybrook | 4.2 mi | 7.6 |
| Lyme Consolidated School Lyme | 6.6 mi | 9.3 |
| Essex Elementary School Centerbrook | 5.3 mi | 9.0 |
| Lillie B. Haynes School Niantic | 6.1 mi | 8.2 |
| East Lyme Middle School Niantic | 6.2 mi | 7.7 |
| Flanders School East Lyme | 6.6 mi | 9.1 |
| Daisy Ingraham School Westbrook | 6.4 mi | 8.2 |
| Niantic Center School Niantic | 6.3 mi | 7.8 |
| East Lyme High School East Lyme | 6.8 mi | 8.2 |
| Deep River Elementary School Deep River | 7.4 mi | 9.3 |
| Westbrook High School Westbrook | 6.8 mi | 8.0 |
| Westbrook Middle School Westbrook | 6.9 mi | 9.1 |
| THE LIGHT HOUSE VOC-ED CENTER Niantic | 6.8 mi | — |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 06371 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$127,429
Median Home Value
$468,200
Median Rent
$1,891/mo
Population
9,855
College Educated
56.1%
Homeownership
88.5%
Avg Commute
26.8 min
Poverty Rate
2.3%
Median Age
51.6
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Center for Global Studies Norwalk, CT | 8.9 |
| Shepaug Valley School Washington, CT | 9.1 |
| Marine Science Magnet High School Groton, CT | 8.5 |
| Valley Regional High School Deep River, CT | 8.3 |
| THE CHESHIRE ACADEMY Cheshire, CT | 8.2 |
| WESTMINSTER SCHOOL Simsbury, CT | 8.1 |
Frequently Asked Questions
Common questions about Lyme-old Lyme High School
What grades does Lyme-old Lyme High School serve?
Lyme-old Lyme High School serves students in grades 9th through 12th.
How many students attend Lyme-old Lyme High School?
Lyme-old Lyme High School has an enrollment of approximately 392 students.
What is the student-teacher ratio at Lyme-old Lyme High School?
The student-teacher ratio at Lyme-old Lyme High School is 9.8:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Lyme-old Lyme High School rank in CT?
Lyme-old Lyme High School ranks #72 of 990 schools in CT.
What is Lyme-old Lyme High School's MySchoolScout rating?
Lyme-old Lyme High School has a current MySchoolScout rating of 9.0 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Lyme-old Lyme High School?
Based on loaded state assessment records, Lyme-old Lyme High School has 76% math proficiency (multi-year average, 2009-2022) and 86% reading/ELA proficiency (multi-year average, 2009-2022).
Is Lyme-old Lyme High School a charter school?
No, Lyme-old Lyme High School is not a charter school. It is a traditional public school operated by the local school district.
Is Lyme-old Lyme High School a Title I school?
No, Lyme-old Lyme High School is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Lyme-old Lyme High School?
13.5% of students at Lyme-old Lyme High School qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
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Neighborhood Context
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Quick Facts NCES CCD (SY 2022-23)
- Grades
- 9th – 12th
- Enrollment
- 392
- Student-Teacher Ratio
- 9.8:1
- Teachers (FTE)
- 40
- Free/Reduced Lunch
- 13.5%
- Type
- regular
- Setting
- Fringe Rural
- County
- Connecticut Planning Region 3
- Chronic Absenteeism (SY 2022-23)
- 15.3%
- Phone
- (860) 434-1651
- 4-Year Graduation
- 95%+
Resources & Links
District
Regional School District 18- District Enrollment
- 1,292
- Schools in District
- 5
- Per-Pupil Spending
- $28,837
- District Rank
- #3 of 5
Other Schools in This District
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