#1 Private Schools with the Smallest Classes in Denver County, CO
Montessori Children's House of Denver
Montessori school · Grades K–5
3.6 students per teacher
Denver, CO
AOverall grade43 students4 students per teacher
2026 lists
Private Schools with the Smallest Classes in Denver County, CO
Private schools in Denver County, CO with the fewest students per teacher (not counting preschools and special education schools). Top 27 of 27 schools.
#2 Private Schools with the Smallest Classes in Denver County, CO
Beth Jacob High School of Denver
Jewish day school · Grades 9–12
3.7 students per teacher
Denver, CO
AOverall gradeAll girls43 students4 students per teacher
#3 Private Schools with the Smallest Classes in Denver County, CO
Ricks Center for Gifted Children
Independent school · Grades Pre-K–8
3.9 students per teacher
Denver, CO
A+Overall grade157 students4 students per teacher
#4 Private Schools with the Smallest Classes in Denver County, CO
Montessori Academy of Colorado
Montessori school · Grades Pre-K–8
4.5 students per teacher
Denver, CO
A+Overall grade76 students5 students per teacher
#5 Private Schools with the Smallest Classes in Denver County, CO
St. Elizabeth's School
Episcopal school · Grades K–8
4.7 students per teacher
Denver, CO
A+Overall grade133 students5 students per teacher
#6 Private Schools with the Smallest Classes in Denver County, CO
Graland Country Day School
Independent school · Grades Pre-K–8
6.1 students per teacher
Denver, CO
BOverall grade651 students6 students per teacher
#7 Private Schools with the Smallest Classes in Denver County, CO
International School of Denver
Independent school · Grades Pre-K–8
6.6 students per teacher
Denver, CO
BOverall grade530 students7 students per teacher
#8 Private Schools with the Smallest Classes in Denver County, CO
Denver Academy of Torah
Jewish day school · Grades K–12
6.6 students per teacher
Denver, CO
B+Overall grade176 students7 students per teacher
#9 Private Schools with the Smallest Classes in Denver County, CO
Denver Academy
Independent school · Grades 2–12
6.9 students per teacher
Denver, CO
B-Overall grade457 students7 students per teacher
#10 Private Schools with the Smallest Classes in Denver County, CO
Montessori School of Denver
Montessori school · Grades Pre-K–8
6.9 students per teacher
Denver, CO
B+Overall grade192 students7 students per teacher
#11 Private Schools with the Smallest Classes in Denver County, CO
Stanley British Primary School
Independent school · Grades K–8
7.4 students per teacher
Denver, CO
B+Overall grade463 students7 students per teacher
#12 Private Schools with the Smallest Classes in Denver County, CO
St. Vincent De Paul Catholic School
Diocesan school · Grades K–8
8 students per teacher
Denver, CO
A+Overall grade372 students8 students per teacher
#13 Private Schools with the Smallest Classes in Denver County, CO
Yeshiva Toras Chaim High School
Jewish day school · Grades 9–12
8.1 students per teacher
Denver, CO
B+Overall gradeAll boys67 students8 students per teacher
#14 Private Schools with the Smallest Classes in Denver County, CO
Bishop Machebeuf High School
Diocesan school · Grades 9–12
8.2 students per teacher
Denver, CO
A+Overall grade164 students8 students per teacher
#15 Private Schools with the Smallest Classes in Denver County, CO
Hillel Academy
Jewish day school · Grades Pre-K–8
8.9 students per teacher
Denver, CO
BOverall grade270 students9 students per teacher
#16 Private Schools with the Smallest Classes in Denver County, CO
St. John's School
Lutheran (Missouri Synod) school · Grades K–8
9.3 students per teacher
Denver, CO
A+Overall grade198 students9 students per teacher
#17 Private Schools with the Smallest Classes in Denver County, CO
Blessed Sacrament Parish School
Diocesan school · Grades Pre-K–8
10.4 students per teacher
Denver, CO
AOverall grade327 students10 students per teacher
#18 Private Schools with the Smallest Classes in Denver County, CO
Annunciation
Parish school · Grades K–8
11.5 students per teacher
Denver, CO
AOverall grade161 students12 students per teacher
#19 Private Schools with the Smallest Classes in Denver County, CO
Escuela De Guadalupe
Independent Catholic school · Grades Pre-K–8
11.9 students per teacher
Denver, CO
A-Overall grade189 students12 students per teacher
#20 Private Schools with the Smallest Classes in Denver County, CO
Notre Dame Parish School
Diocesan school · Grades Pre-K–8
12.1 students per teacher
Denver, CO
A+Overall grade169 students12 students per teacher
#21 Private Schools with the Smallest Classes in Denver County, CO
St. James Catholic School
Diocesan school · Grades Pre-K–8
13 students per teacher
Denver, CO
B+Overall grade193 students13 students per teacher
#22 Private Schools with the Smallest Classes in Denver County, CO
Mullen High School
Independent Catholic school · Grades 9–12
13.1 students per teacher
Denver, CO
A+Overall grade753 students13 students per teacher
#23 Private Schools with the Smallest Classes in Denver County, CO
St. Annes Episcopal School
Episcopal school · Grades Pre-K–8
13.7 students per teacher
Denver, CO
B-Overall grade394 students14 students per teacher
#24 Private Schools with the Smallest Classes in Denver County, CO
St. Rose of Lima Catholic Academy
Diocesan school · Grades Pre-K–8
14.2 students per teacher
Denver, CO
BOverall grade185 students14 students per teacher
From official public records, updated October 2026.