#1 Most Diverse Private Schools in Boulder, CO
Sacred Heart of Jesus School
Parish school · Grades Pre-K–8
Largest group: 58% of students
Boulder, CO
A+Overall grade169 students6 students per teacher
2026 lists
Most Diverse Private Schools in Boulder, CO
Private schools in Boulder, CO with the most varied mix of students. Top 8 of 8 schools.
#2 Most Diverse Private Schools in Boulder, CO
Shining Mtn. Waldorf High School
Independent school · Grades Pre-K–12
Largest group: 65% of students
Boulder, CO
AOverall grade188 students5 students per teacher
#3 Most Diverse Private Schools in Boulder, CO
Bixby School
Independent school · Grades Pre-K–5
Largest group: 78% of students
Boulder, CO
A+Overall grade93 students4 students per teacher
#4 Most Diverse Private Schools in Boulder, CO
Boulder Country Day School
Independent school · Grades Pre-K–8
Largest group: 85% of students
Boulder, CO
B+Overall grade281 students6 students per teacher
#5 Most Diverse Private Schools in Boulder, CO
Shining Mountain Waldorf School
Independent school · Grades Pre-K–12
Largest group: 85% of students
Boulder, CO
B-Overall grade170 students10 students per teacher
#6 Most Diverse Private Schools in Boulder, CO
Friends School
Independent school · Grades Pre-K–8
Largest group: 87% of students
Boulder, CO
B-Overall grade134 students
#7 Most Diverse Private Schools in Boulder, CO
Watershed School
Independent school · Grades 6–12
Largest group: 93% of students
Boulder, CO
BOverall grade114 students7 students per teacher
#8 Most Diverse Private Schools in Boulder, CO
Jarrow Montessori School
Montessori school · Grades Pre-K–6
Largest group: 96% of students
Boulder, CO
BOverall grade70 students8 students per teacher
From official public records, updated October 2026.