Serving 392 students in grades 9-12, Lyme-old Lyme High School ranks in the top 10% of all schools in Connecticut for overall test scores (math proficiency is top 20%, and reading proficiency is top 20%).
The percentage of students achieving proficiency in math is 65-69% (which is higher than the Connecticut state average of 40%). The percentage of students achieving proficiency in reading/language arts is 85-89% (which is higher than the Connecticut state average of 50%).
The student:teacher ratio of 10:1 is lower than the Connecticut state level of 12:1.
Minority enrollment is 18% of the student body (majority Hispanic), which is lower than the Connecticut state average of 53% (majority Hispanic).
Quick Stats (2025)
Grades: 9-12
Enrollment: 392 students
Student:Teacher Ratio: 10:1
Minority Enrollment: 18%
Graduation Rate
: 90-94% (Top 50% in CT)
Overall Testing Rank
: Top 10%
Math Proficiency
: 65-69% (Top 20%)
Reading Proficiency
: 85-89% (Top 1%)
Science Proficiency
: 70-74% (Top 20%)
Source: National Center for Education Statistics (NCES), CT Dept. of Education
Lyme-old Lyme High School ranks within the top 10% of all 942 schools in Connecticut (based off of combined math and reading proficiency testing data).
The diversity score of Lyme-old Lyme High School is 0.32, which is less than the diversity score at state average of 0.68. The school's diversity has stayed relatively flat over five school years.
Lyme-old Lyme High School is ranked #69 out of 942 schools, which ranks it among the top 10% of public schools in Connecticut.
What schools are Lyme-old Lyme High School often compared to?
Lyme-old Lyme High Schoolis often viewed alongside schools like East Lyme High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
65-69% of students have achieved math proficiency (compared to the 40% CT state average), while 85-89% of students have achieved reading proficiency (compared to the 50% CT state average).
What is the graduation rate of Lyme-old Lyme High School?
The graduation rate of Lyme-old Lyme High School is 90-94%, which is higher than the Connecticut state average of 89%.
How many students attend Lyme-old Lyme High School?
392 students attend Lyme-old Lyme High School.
What is the racial composition of the student body?
82% of Lyme-old Lyme High School students are White, 9% of students are Hispanic, 5% of students are Asian, and 4% of students are Two or more races.
What is the student:teacher ratio of Lyme-old Lyme High School?
Lyme-old Lyme High School has a student ration of 10:1, which is lower than the Connecticut state average of 12:1.
What grades does Lyme-old Lyme High School offer ?
Lyme-old Lyme High School offers enrollment in grades 9-12 (offers virtual instruction).
What school district is Lyme-old Lyme High School part of?
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Quick Stats (2025)
Grades: 9-12
Enrollment: 392 students
Student:Teacher Ratio: 10:1
Minority Enrollment: 18%
Graduation Rate
: 90-94% (Top 50%)
Overall Testing Rank
: Top 10%
Math Proficiency
: 65-69% (Top 20%)
Reading Proficiency
: 85-89% (Top 1%)
Science Proficiency
: 70-74% (Top 20%)
Source: National Center for Education Statistics (NCES), CT Dept. of Education
