#1 Best Private Schools in Naugatuck Valley County, CT
Westover School
Independent school · Grades 9–12
96% of graduates go to four-year colleges
Middlebury, CT
A+Overall gradeAll girls142 students5 students per teacher
2026 lists
Best Private Schools in Naugatuck Valley County, CT
Private schools in Naugatuck Valley County, CT with the highest overall grades. Top 16 of 16 schools.
#2 Best Private Schools in Naugatuck Valley County, CT
The Cheshire Academy
Independent school · Grades 9–12
100% of graduates go to four-year colleges
Cheshire, CT
A+Overall grade341 students6 students per teacher
#3 Best Private Schools in Naugatuck Valley County, CT
Holy Trinity Catholic Academy
Diocesan school · Grades Pre-K–8
Smaller classes than 82% of Catholic schools in Connecticut
Shelton, CT
A+Overall grade120 students9 students per teacher
#4 Best Private Schools in Naugatuck Valley County, CT
St. Matthew School
Diocesan school · Grades Pre-K–8
The smallest classes of any Catholic school in Bristol
Bristol, CT
A+Overall grade142 students10 students per teacher
#5 Best Private Schools in Naugatuck Valley County, CT
St. Mary Magdalen School
Parish school · Grades Pre-K–4
Smaller classes than 80% of Catholic schools in Connecticut
Oakville, CT
A+Overall grade137 students9 students per teacher
#6 Best Private Schools in Naugatuck Valley County, CT
St. Joseph School
Parish school · Grades Pre-K–8
Serving families in Bristol since at least 2011
Bristol, CT
AOverall grade171 students13 students per teacher
#7 Best Private Schools in Naugatuck Valley County, CT
Bais Yaakov of Waterbury High School
Jewish day school · Grades 9–12
Smaller classes than 84% of Jewish day schools nationwide
Naugatuck, CT
B+Overall gradeAll girls86 students4 students per teacher
#8 Best Private Schools in Naugatuck Valley County, CT
Holy Cross High School
Independent Catholic school · Grades 9–12
Serving families in Waterbury since at least 2011
Waterbury, CT
B+Overall grade495 students13 students per teacher
#9 Best Private Schools in Naugatuck Valley County, CT
St. John's School
Parish school · Grades 5–8
One of 2 Catholic schools in Watertown
Watertown, CT
B+Overall grade101 students13 students per teacher
#10 Best Private Schools in Naugatuck Valley County, CT
Children's Community School
Independent school · Grades Pre-K–8
The only independent school in Waterbury
Waterbury, CT
B+Overall grade129 students9 students per teacher
#11 Best Private Schools in Naugatuck Valley County, CT
Assumption School
Parish school · Grades Pre-K–8
Serving families in Ansonia since at least 2011
Ansonia, CT
B+Overall grade163 students14 students per teacher
#12 Best Private Schools in Naugatuck Valley County, CT
St. John the Evangelist School
Diocesan school · Grades 5–8
Serving families in Watertown since at least 2011
Watertown, CT
B+Overall grade101 students14 students per teacher
#13 Best Private Schools in Naugatuck Valley County, CT
Catholic Academy of Waterbury
Diocesan school · Grades Pre-K–8
Serving families in Waterbury since at least 2011
Waterbury, CT
B+Overall grade171 students16 students per teacher
#14 Best Private Schools in Naugatuck Valley County, CT
Yeshiva K'tana of Waterbury
Jewish day school · Grades Pre-K–8
The only Jewish school in Waterbury
Waterbury, CT
BOverall grade583 students6 students per teacher
#15 Best Private Schools in Naugatuck Valley County, CT
Immanuel Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
The only Christian school in Bristol
Bristol, CT
BOverall grade87 students11 students per teacher
#16 Best Private Schools in Naugatuck Valley County, CT
St. Paul Catholic High School
Diocesan school · Grades 9–12
The largest Catholic school in Bristol
Bristol, CT
B-Overall grade388 students14 students per teacher
Grades compare each school's official facts, such as class size, how long it has served families and where graduates go, with similar schools. They're a starting point: visit, ask questions and trust what you see.