For the 2025-26 school year, there are 9 private high schools serving 1,403 students in Middlesex County, CT.
The top-ranked private high schools in Middlesex County, CT include Xavier High School, Mercy High School, and The Oxford Academy.
The average acceptance rate is 87%, which is higher than the Connecticut private high school average acceptance rate of 65%.
20% of private high schools in Middlesex County, CT are religiously affiliated (most commonly Catholic).
Top-Ranked Middlesex County Private High Schools (2025-26)
School
Location
Quick Facts
60 Hicksville Rd
Cromwell, CT 06416
(860) 635-5801
Cromwell, CT 06416
(860) 635-5801
Gr: 5-12 | 79 students
Mercy High School![Mercy High School Photo]( "Mercy High School Photo")
All-girls (Catholic)
1740 Randolph Road
Middletown, CT 06457
(860) 346-6659
Middletown, CT 06457
(860) 346-6659
Gr: 9-12 | 394 students Avg. class size: 21 students Sports: 17 Tuition & acceptance rate listed
1393 Boston Post Road
Westbrook, CT 06498
(860) 399-6247
Westbrook, CT 06498
(860) 399-6247
Gr: 8-12 | 48 students Avg. class size: 1 student Sports: 8 | Extracurrculars: 13 Tuition & acceptance rate listed
181 Randolph Rd
Middletown, CT 06457
(860) 346-7735
Middletown, CT 06457
(860) 346-7735
Gr: 9-12 | 600 students Avg. class size: 12 students Sports: 18 | Extracurrculars: 1 Tuition & acceptance rate listed
140 River Road
East Haddam, CT 06423
(860) 873-2700
East Haddam, CT 06423
(860) 873-2700
Gr: 8-12 | 85 students Avg. class size: 6 students Sports: 5 | Extracurrculars: 3 Tuition listed
Joshua Center Shoreline Cdt
Special Education School
5 Research Pkwy
Old Saybrook, CT 06475
(860) 510-0163
Old Saybrook, CT 06475
(860) 510-0163
Gr: 9-12 | 7 students
Mt. Saint John
All-boys | Special Education School
135 Kirtland St
Deep River, CT 06417
(860) 343-1300
Deep River, CT 06417
(860) 343-1300
Gr: 9-12 | 39 students
Northwest Village School
Special Education School
20 Tuttle Pl Ste 4
Middletown, CT 06457
(860) 793-3717
Middletown, CT 06457
(860) 793-3717
Gr: 1-12 | 134 students
Rushford Academy School
All-boys | Special Education School
459r Wallingford Rd
Durham, CT 06422
(860) 349-1989
Durham, CT 06422
(860) 349-1989
Gr: 9-12 | 8 students
Middlesex County Private Schools (Closed)
School
Location
Quick Facts
St. John School (Closed 2010)
(Catholic)
5 Saint Johns Sq
Middletown, CT 06457
(860) 347-3202
Middletown, CT 06457
(860) 347-3202
Gr: K-8 | 114 students
St. Sebastian School (Closed 2006)
(Catholic)
61 Durant Ter
Middletown, CT 06457
(860) 347-3438
Middletown, CT 06457
(860) 347-3438
Gr: PK-8 | 132 students
Frequently Asked Questions
What are the top-ranked private high schools in Middlesex County, CT?
The top-ranked private high schools in Middlesex County, CT include Xavier High School, Mercy High School, and The Oxford Academy.
How many private high schools are located in Middlesex County?
9 private high schools are located in Middlesex County.
How diverse are private high schools in Middlesex County?
Middlesex County private high schools are approximately 22% minority students, which is lower than the Connecticut private school average of 30%.
What percentage of private high schools are religiously affiliated in Middlesex County?
20% of private high schools in Middlesex County are religiously affiliated (most commonly Catholic).
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