#1 Most Diverse Private Schools in Fairfield, CT
Notre Dame Catholic High School
Diocesan school · Grades 9–12
Largest group: 34% of students
Fairfield, CT
A-Overall grade500 students17 students per teacher
2026 lists
Most Diverse Private Schools in Fairfield, CT
Private schools in Fairfield, CT with the most varied mix of students. Top 6 of 6 schools.
#2 Most Diverse Private Schools in Fairfield, CT
Assumption Catholic School
Diocesan school · Grades Pre-K–8
Largest group: 43% of students
Fairfield, CT
A+Overall grade142 students12 students per teacher
#3 Most Diverse Private Schools in Fairfield, CT
Fairfield College Preparatory
Independent Catholic school · Grades 9–12
Largest group: 71% of students
Fairfield, CT
BOverall gradeAll boys787 students17 students per teacher
#4 Most Diverse Private Schools in Fairfield, CT
The Unquowa School
Independent school · Grades Pre-K–8
Largest group: 72% of students
Fairfield, CT
BOverall grade142 students5 students per teacher
#5 Most Diverse Private Schools in Fairfield, CT
St. Thomas Aquinas Catholic School
Diocesan school · Grades Pre-K–8
Largest group: 76% of students
Fairfield, CT
A+Overall grade293 students7 students per teacher
#6 Most Diverse Private Schools in Fairfield, CT
Fairfield Country Day School
Independent school · Grades K–9
Largest group: 84% of students
Fairfield, CT
A+Overall gradeAll boys198 students5 students per teacher
From official public records, updated October 2026.