Regional School District 18

49 Lyme Street
Old Lyme, CT 06371
(District boundaries shown in map)
10/
10
Top 5%

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

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.
This School District
State Average (CT)
#10 out of 200 school districts
(Top 5%)
This chart displays the overall district rank of Regional School District 18, with the latest 2021-22 school year data.
70%
40%
This chart displays the percentage of public school students that scored at or above 'proficient' levels in Math of Regional School District 18 and the percentage of public school students that scored at or above 'proficient' levels in Math of Connecticut by year, with the latest 2021-22 school year data.
78%
50%
This chart displays the percentage of public school students that scored at or above 'proficient' levels in Reading/Language Arts of Regional School District 18 and the percentage of public school students that scored at or above 'proficient' levels in Reading/Language Arts of Connecticut by year, with the latest 2021-22 school year data.
78%
47%
This chart displays the percentage of public school students that scored at or above 'proficient' levels in Science of Regional School District 18 and the percentage of public school students that scored at or above 'proficient' levels in Science of Connecticut by year, with the latest 2021-22 school year data.
90-94%
89%
This chart displays public school graduation rate of Regional School District 18 and public school graduation rate of Connecticut by year, with the latest 2021-22 school year data.

Students by Ethnicity:

0.27
0.68
# American Indian Students
n/a
426 Students
% American Indian Students
n/a
n/a
# Asian Students
37 Students
8,064 Students
% Asian Students
3%
5%
# Hispanic Students
89 Students
50,824 Students
% Hispanic Students
7%
31%
# Black Students
6 Students
24,621 Students
% Black Students
1%
15%
# White Students
1,099 Students
75,269 Students
% White Students
85%
45%
# Hawaiian Students
n/a
165 Students
% Hawaiian Students
n/a
n/a
# Two or more races Students
55 Students
6,542 Students
% of Two or more races Students
4%
4%

Students by Grade:

# Students in PK Grade:
99
230
# Students in K Grade:
86
590
# Students in 1st Grade:
89
558
# Students in 2nd Grade:
98
566
# Students in 3rd Grade:
77
579
# Students in 4th Grade:
97
609
# Students in 5th Grade:
79
601
# Students in 6th Grade:
93
1,643
# Students in 7th Grade:
92
2,088
# Students in 8th Grade:
87
2,127
# Students in 9th Grade:
94
41,217
# Students in 10th Grade:
90
39,783
# Students in 11th Grade:
98
38,905
# Students in 12th Grade:
110
36,857
# Ungraded Students:
-
-

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.
This School District
This State (CT)
Total Revenue
$39 MM
$12,920 MM
This chart displays total revenue of Regional School District 18 and median value from total revenues of all school districts in Connecticut by year, with the latest 2020-21 school year data.
Spending
$37 MM
$12,459 MM
This chart displays total spending of Regional School District 18 and median value from total spendings of all school districts in Connecticut by year, with the latest 2020-21 school year data.
Revenue / Student
$30,433
$26,157
This chart displays average revenue per public school student in Regional School District 18 and average revenue per public school student of all school districts in Connecticut by year, with the latest 2020-21 school year data.
Spending / Student
$28,536
$25,225
This chart displays average spending per public school student in Regional School District 18 and average spending per public school student of all school districts in Connecticut by year, with the latest 2020-21 school year data.

Best Regional School District 18 Public High Schools (2025)

School
(Math and Reading Proficiency)
Location
Grades
Students
Rank: #11.
Lyme-old Lyme High School
(Math: 65-69% | Reading: 85-89%)
Rank:
10/
10
Top 10%
69 Lyme St.
Old Lyme, CT 06371
(860) 434-1651
Grades: 9-12
| 392 students

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Quick Stats (2025)

  • District size: 5 schools
  • Grades: PK-12
  • Enrollment: 1,289 students
  • Student:Teacher Ratio: 11:1
  • Minority Enrollment: 15%
  • : 90-94% (Top 50% in CT)
  • : Top 5%
  • : 70% (Top 10%)
  • : 78% (Top 5%)
  • : 78% (Top 5%)
  • Source: National Center for Education Statistics (NCES), CT Dept. of Education

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