Top Rankings
Regional School District 18 ranks among the top 20% of public school district in Connecticut for:
Category
Attribute
Overall Rank
Highest overall rank (Top 5%)
Math Proficiency
Highest math proficiency (Top 10%)
Reading/Language Arts Proficiency
Highest reading/language arts proficiency (Top 5%)
Science Proficiency
Highest science proficiency (Top 5%)
For the 2025 school year, there is 1 public high school serving 392 students in Regional School District 18. This district's average high testing ranking is 10/10, which is in the top 5% of public high schools in Connecticut.
Public High School in Regional School District 18 have an average math proficiency score of 67% (versus the Connecticut public high school average of 33%), and reading proficiency score of 87% (versus the 53% statewide average).
Public High School in Regional School District 18 have a Graduation Rate of 92%, which is more than the Connecticut average of 90%.
The school with highest graduation rate is Lyme-old Lyme High School, with 90-94% graduation rate. Read more about public school graduation rate statistics in Connecticut or national school graduation rate statistics.
Minority enrollment is 18% of the student body (majority Hispanic), which is less than the Connecticut public high school average of 55% (majority Hispanic).
Overview
This School District
This State (CT)
# Schools
5 Schools
219 Schools
# Students
1,289 Students
166,353 Students
# Teachers
120 Teachers
13,569 Teachers
Student : Teacher Ratio
11:1
11:1
Student By Grade
District Rank
Regional School District 18, which is ranked within the top 10% of all 197 school districts in Connecticut (based off of combined math and reading proficiency testing data) for the 2021-2022 school year.
The school district's graduation rate of 90-94% has stayed relatively flat over five school years.
Overall District Rank
#10 out of 200 school districts
(Top 5%)
(Top 5%)
Math Test Scores (% Proficient)
70%
40%
Reading/Language Arts Test Scores (% Proficient)
78%
50%
Science Test Scores (% Proficient)
78%
47%
Graduation Rate
90-94%
89%
Students by Ethnicity:
Diversity Score
0.27
0.68
% American Indian
n/a
n/a
% Asian
3%
5%
% Hispanic
7%
31%
% Black
1%
15%
% White
85%
45%
% Hawaiian
n/a
n/a
% Two or more races
4%
4%
All Ethnic Groups
District Revenue and Spending
The revenue/student of $30,433 is higher than the state median of $26,157. The school district revenue/student has stayed relatively flat over four school years.
The school district's spending/student of $28,536 is higher than the state median of $25,225. The school district spending/student has stayed relatively flat over four school years.
Total Revenue
$39 MM
$12,920 MM
Spending
$37 MM
$12,459 MM
Revenue / Student
$30,433
$26,157
Spending / Student
$28,536
$25,225
Best Regional School District 18 Public High Schools (2025)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Grades
Students
Rank: #11.
Lyme-old Lyme High School
(Math: 65-69% | Reading: 85-89%)
Rank:
Rank:
10/
Top 10%10
69 Lyme St.
Old Lyme, CT 06371
(860) 434-1651
Old Lyme, CT 06371
(860) 434-1651
Grades: 9-12
| 392 students
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