For the 2026 school year, there are 13 public high schools serving 5,724 students in Middlesex County, CT.
The top-ranked public high schools in Middlesex County, CT are Haddam-killingworth High School, Coginchaug Regional High School and Valley Regional High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Middlesex County, CT public high schools have an average math proficiency score of 37% (versus the Connecticut public high school average of 33%), and reading proficiency score of 62% (versus the 53% statewide average). High schools in Middlesex County have an average ranking of 8/10, which is in the top 30% of Connecticut public high schools.
Middlesex County, CT public high school have a Graduation Rate of 94%, which is more than the Connecticut average of 89%.
The school with highest graduation rate is Cromwell High School, with ≥95% graduation rate. Read more about public school graduation rate statistics in Connecticut or national school graduation rate statistics.
Minority enrollment is 30% of the student body (majority Hispanic), which is less than the Connecticut public high school average of 56% (majority Hispanic).
Best Public High Schools in Middlesex County (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Haddam-killingworth High School
(Math: 55-59% | Reading: 70-74%)
Rank:
Rank:
8/
Top 30%10
95 Little City Road
Higganum, CT 06441
(860) 345-8541
Higganum, CT 06441
(860) 345-8541
Gr: 9-12 | 466 students Student-teacher ratio: 10:1 Minority enrollment: 12%
Rank: #22.
Coginchaug Regional High School
(Math: 45-49% | Reading: 75-79%)
Rank:
Rank:
8/
Top 30%10
135 Pickett Ln.
Durham, CT 06422
(860) 349-7215
Durham, CT 06422
(860) 349-7215
Gr: 9-12 | 356 students Student-teacher ratio: 9:1 Minority enrollment: 16%
Rank: #33.
Valley Regional High School
(Math: 35-39% | Reading: 80-84%)
Rank:
Rank:
7/
Top 50%10
256 Kelsey Hill Rd.
Deep River, CT 06417
(860) 526-5328
Deep River, CT 06417
(860) 526-5328
Gr: 9-12 | 429 students Student-teacher ratio: 9:1 Minority enrollment: 18%
Rank: #44.
The Morgan School
(Math: 40-44% | Reading: 70-74%)
Rank:
Rank:
7/
Top 50%10
71 Killingworth Tpke.
Clinton, CT 06413
(860) 664-6504
Clinton, CT 06413
(860) 664-6504
Gr: 9-12 | 473 students Student-teacher ratio: 10:1 Minority enrollment: 32%
Rank: #5 - 65. - 6.
Old Saybrook Senior High School
(Math: 45-49% | Reading: 65-69%)
Rank:
Rank:
7/
Top 50%10
1111 Boston Post Rd.
Old Saybrook, CT 06475
(860) 395-3175
Old Saybrook, CT 06475
(860) 395-3175
Gr: 9-12 | 338 students Student-teacher ratio: 8:1 Minority enrollment: 23%
Rank: #5 - 65. - 6.
Portland High School
(Math: 45-49% | Reading: 65-69%)
Rank:
Rank:
7/
Top 50%10
95 High Street
Portland, CT 06480
(860) 342-1720
Portland, CT 06480
(860) 342-1720
Gr: 9-12 | 323 students Student-teacher ratio: 10:1 Minority enrollment: 28%
Rank: #77.
Cromwell High School
(Math: 45-49% | Reading: 60-64%)
Rank:
Rank:
7/
Top 50%10
1 Donald Harris Dr.
Cromwell, CT 06416
(860) 632-4841
Cromwell, CT 06416
(860) 632-4841
Gr: 9-12 | 515 students Student-teacher ratio: 11:1 Minority enrollment: 32%
Rank: #88.
Nathan Hale-ray High School
(Math: 30-34% | Reading: 70-79%)
Rank:
Rank:
6/
Top 50%10
15 School Drive
Moodus, CT 06469
(860) 873-5065
Moodus, CT 06469
(860) 873-5065
Gr: 9-12 | 262 students Student-teacher ratio: 8:1 Minority enrollment: 13%
Rank: #99.
East Hampton High School
(Math: 40-44% | Reading: 55-59%)
Rank:
Rank:
6/
Top 50%10
15 North Maple St.
East Hampton, CT 06424
(860) 365-4030
East Hampton, CT 06424
(860) 365-4030
Gr: 9-12 | 488 students Student-teacher ratio: 11:1 Minority enrollment: 13%
Rank: #1010.
Westbrook High School
(Math: 30-39% | Reading: 60-69%)
Rank:
Rank:
6/
Top 50%10
156 Mcveagh Rd.
Westbrook, CT 06498
(860) 399-6214
Westbrook, CT 06498
(860) 399-6214
Gr: 9-12 | 166 students Student-teacher ratio: 6:1 Minority enrollment: 36%
Rank: #1111.
Middletown High School
(Math: 23% | Reading: 42%)
Rank:
Rank:
3/
Bottom 50%10
200 Larosa Lane
Middletown, CT 06457
(860) 704-4500
Middletown, CT 06457
(860) 704-4500
Gr: 9-12 | 1,193 student Student-teacher ratio: 12:1 Minority enrollment: 62%
Rank: #1212.
Vinal Technical High School
Vocational School
(Math: 6-9% | Reading: 35-39%)
Rank:
Rank:
2/
Bottom 50%10
60 Daniels St.
Middletown, CT 06457
(860) 344-7100
Middletown, CT 06457
(860) 344-7100
Gr: 9-12 | 522 students Student-teacher ratio: 11:1 Minority enrollment: 36%
Rank: n/an/a
Whiting Forensic Hospital
Alternative School
70 O'brien Drive
Middletown, CT 06547
(860) 262-7175
Middletown, CT 06547
(860) 262-7175
Gr: 9-12
Frequently Asked Questions
What are the top-ranked public high schools in Middlesex County, CT?
The top-ranked public high schools in Middlesex County, CT include Haddam-killingworth High School, Coginchaug Regional High School and Valley Regional High School.
How many public high schools are located in Middlesex County?
13 public high schools are located in Middlesex County.
What is the racial composition of students in Middlesex County?
Middlesex County public high schools minority enrollment is 30% of the student body (majority Hispanic), which is less than the Connecticut public high schools average of 56% (majority Hispanic).
Which public high schools in Middlesex County are often viewed compared to one another?
Popular comparisons of public high schools in Middlesex County include: Westbrook High School vs. Valley Regional High School, The Morgan School vs. Nathan Hale-ray High School, Nathan Hale-ray High School vs. The Morgan School
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