#1 Largest Private Schools in Colorado
Resurrection Christian School
Christian school (nondenominational) · Grades Pre-K–12
1,180 students
Loveland, CO
B-Overall grade1,180 students10 students per teacher
2026 lists
Largest Private Schools in Colorado
The private schools in Colorado with the most students. Top 50 of 206 schools.
#2 Largest Private Schools in Colorado
Valor Christian High School
Christian school (nondenominational) · Grades 9–12
1,173 students
Highlands Ranch, CO
A+Overall grade1,173 students6 students per teacher
#3 Largest Private Schools in Colorado
Colorado Academy
Independent school · Grades Pre-K–12
1,009 students
Denver, CO
BOverall grade1,009 students
#4 Largest Private Schools in Colorado
Denver Christian School
Christian school (nondenominational) · Grades Pre-K–12
865 students
Lakewood, CO
B-Overall grade865 students12 students per teacher
#5 Largest Private Schools in Colorado
Kent Denver School
Independent school · Grades 6–12
761 students
Englewood, CO
B+Overall grade761 students9 students per teacher
#6 Largest Private Schools in Colorado
Mullen High School
Independent Catholic school · Grades 9–12
753 students
Denver, CO
A+Overall grade753 students13 students per teacher
#7 Largest Private Schools in Colorado
St. Mary's Academy
Independent Catholic school · Grades Pre-K–12
664 students
Englewood, CO
A+Overall grade664 students9 students per teacher
#8 Largest Private Schools in Colorado
Graland Country Day School
Independent school · Grades Pre-K–8
651 students
Denver, CO
BOverall grade651 students6 students per teacher
#9 Largest Private Schools in Colorado
Cherry Hills Christian
Presbyterian school · Grades Pre-K–8
637 students
Highlands Ranch, CO
BOverall grade637 students13 students per teacher
#10 Largest Private Schools in Colorado
Faith Christian Academy
Christian school (nondenominational) · Grades K–8
560 students
Arvada, CO
B-Overall grade560 students15 students per teacher
#11 Largest Private Schools in Colorado
Crescent View Academy
Islamic school · Grades Pre-K–12
539 students
Aurora, CO
A+Overall grade539 students10 students per teacher
#12 Largest Private Schools in Colorado
International School of Denver
Independent school · Grades Pre-K–8
530 students
Denver, CO
BOverall grade530 students7 students per teacher
#13 Largest Private Schools in Colorado
Flatirons Academy
Christian school (nondenominational) · Grades K–12
515 students
Westminster, CO
B-Overall grade515 students16 students per teacher
#14 Largest Private Schools in Colorado
Dayspring Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
477 students
Greeley, CO
BOverall grade477 students11 students per teacher
#15 Largest Private Schools in Colorado
Front Range Christian School
Christian school (nondenominational) · Grades Pre-K–12
472 students
Littleton, CO
A-Overall grade472 students8 students per teacher
#16 Largest Private Schools in Colorado
Stanley British Primary School
Independent school · Grades K–8
463 students
Denver, CO
B+Overall grade463 students7 students per teacher
#17 Largest Private Schools in Colorado
Denver Academy
Independent school · Grades 2–12
457 students
Denver, CO
B-Overall grade457 students7 students per teacher
#18 Largest Private Schools in Colorado
Aspen Academy
Independent school · Grades Pre-K–8
452 students
Greenwood Village, CO
B-Overall grade452 students12 students per teacher
#19 Largest Private Schools in Colorado
Ave Maria Catholic School
Diocesan school · Grades Pre-K–8
421 students
Parker, CO
B-Overall grade421 students18 students per teacher
#20 Largest Private Schools in Colorado
Southeast Christian School
Christian school (nondenominational) · Grades Pre-K–8
414 students
Parker, CO
B+Overall grade414 students15 students per teacher
#21 Largest Private Schools in Colorado
Arrupe Jesuit High School
Independent Catholic school · Grades 9–12
413 students
Denver, CO
B-Overall grade413 students17 students per teacher
#22 Largest Private Schools in Colorado
Holy Family Catholic School
Diocesan school · Grades Pre-K–8
406 students
Grand Junction, CO
B-Overall grade406 students
#23 Largest Private Schools in Colorado
Vail Mountain School
Independent school · Grades K–12
401 students
Vail, CO
B+Overall grade401 students7 students per teacher
#24 Largest Private Schools in Colorado
St. Annes Episcopal School
Episcopal school · Grades Pre-K–8
394 students
Denver, CO
B-Overall grade394 students14 students per teacher
From official public records, updated October 2026.