#1 Largest Private Schools in Capitol County, CT
The Loomis Chaffee School
Independent school · Grades 9–12
735 students
Windsor, CT
BOverall grade735 students8 students per teacher
2026 lists
Largest Private Schools in Capitol County, CT
The private schools in Capitol County, CT with the most students. Top 48 of 48 schools.
#2 Largest Private Schools in Capitol County, CT
Kingswood Oxford School
Independent school · Grades 6–12
506 students
West Hartford, CT
BOverall grade506 students8 students per teacher
#3 Largest Private Schools in Capitol County, CT
East Catholic High School
Diocesan school · Grades 9–12
427 students
Manchester, CT
A+Overall grade427 students10 students per teacher
#4 Largest Private Schools in Capitol County, CT
Westminster School
Independent school · Grades 9–12
414 students
Simsbury, CT
BOverall grade414 students7 students per teacher
#5 Largest Private Schools in Capitol County, CT
Suffield Academy
Independent school · Grades 9–12
413 students
Suffield, CT
A+Overall grade413 students6 students per teacher
#6 Largest Private Schools in Capitol County, CT
Northwest Catholic High School
Diocesan school · Grades 9–12
401 students
West Hartford, CT
A+Overall grade401 students11 students per teacher
#7 Largest Private Schools in Capitol County, CT
Emmanuel Christian Academy
Baptist school · Grades Pre-K–12
372 students
Newington, CT
B-Overall grade372 students17 students per teacher
#8 Largest Private Schools in Capitol County, CT
St. James School
Parish school · Grades Pre-K–8
352 students
Manchester, CT
BOverall grade352 students16 students per teacher
#9 Largest Private Schools in Capitol County, CT
Miss Porter's School
Independent school · Grades 9–12
336 students
Farmington, CT
B+Overall gradeAll girls336 students7 students per teacher
#10 Largest Private Schools in Capitol County, CT
Renbrook School
Independent school · Grades Pre-K–8
288 students
West Hartford, CT
A+Overall grade288 students4 students per teacher
#11 Largest Private Schools in Capitol County, CT
Corpus Christi School
Parish school · Grades Pre-K–8
260 students
Wethersfield, CT
BOverall grade260 students14 students per teacher
#12 Largest Private Schools in Capitol County, CT
The Ethel Walker School
Independent school · Grades 6–12
227 students
Simsbury, CT
B+Overall gradeAll girls227 students8 students per teacher
#13 Largest Private Schools in Capitol County, CT
Watkinson School
Independent school · Grades 6–12
214 students
Hartford, CT
BOverall grade214 students13 students per teacher
#14 Largest Private Schools in Capitol County, CT
St. Mary's School
Parish school · Grades Pre-K–8
197 students
Simsbury, CT
A-Overall grade197 students13 students per teacher
#15 Largest Private Schools in Capitol County, CT
St. Bernard School
Parish school · Grades K–8
183 students
Enfield, CT
B+Overall grade183 students14 students per teacher
#16 Largest Private Schools in Capitol County, CT
St. Paul School
Diocesan school · Grades Pre-K–8
180 students
Kensington, CT
B+Overall grade180 students14 students per teacher
#17 Largest Private Schools in Capitol County, CT
The Master's School
Christian school (nondenominational) · Grades Pre-K–12
162 students
West Simsbury, CT
A+Overall grade162 students6 students per teacher
#18 Largest Private Schools in Capitol County, CT
Oak Hill School
Special education school · Grades K–12
153 students
Hartford, CT
BOverall grade153 students11 students per teacher
#19 Largest Private Schools in Capitol County, CT
St. Bridget School
Parish school · Grades Pre-K–8
145 students
Manchester, CT
A+Overall grade145 students13 students per teacher
#20 Largest Private Schools in Capitol County, CT
Solterra Academy
Special education school · Grades 1–12
143 students
New Britain, CT
BOverall grade143 students7 students per teacher
#21 Largest Private Schools in Capitol County, CT
Gengras Center/Univ of St. Joseph
Special education school · Grades 2–12
143 students
West Hartford, CT
B+Overall grade143 students6 students per teacher
#22 Largest Private Schools in Capitol County, CT
The Cobb School, Montessori
Montessori school · Grades Pre-K–6
135 students
Simsbury, CT
BOverall grade135 students4 students per teacher
#23 Largest Private Schools in Capitol County, CT
The Cornerstone Christian School
Church of the Nazarene school · Grades Pre-K–12
134 students
Manchester, CT
AOverall grade134 students8 students per teacher
#24 Largest Private Schools in Capitol County, CT
Central Christian Academy
Baptist school · Grades K–12
127 students
Southington, CT
BOverall grade127 students12 students per teacher
From official public records, updated October 2026.