Private Schools

Private Schools in Boulder, Colorado

11 private schools in Boulder, Colorado with at least 30 students answered the 2023-24 federal survey. Together they enroll 1,350 students: 1 Catholic and 10 nonsectarian. 4 schools go through high school grades.

Schools listed

Go through high school

Median enrollment

114

Median students per teacher

6.3

Private schools in Boulder, Colorado

Largest first. Students per teacher is the school’s own report.

School	Grades	Students	Per teacher	Affiliation
Boulder Country Day School	PK–8	281	5.7	Nonsectarian
Shining MTN Waldorf High School	PK–12	188	5.4	Nonsectarian
Shining Mountain Waldorf SchoolSpecial program	PK–12	170	9.9	Nonsectarian
Sacred Heart of Jesus School	PK–8	169	6.3	Catholic
Friends School	PK–8	134	134	Nonsectarian
Watershed School	6–12	114	6.7	Nonsectarian
Bixby School	PK–5	93	3.7	Nonsectarian
Jarrow Montessori SchoolMontessori	PK–6	70	7.5	Nonsectarian
Mapleton Montessori SchoolMontessori	Ungraded	48	5.9	Nonsectarian
Mountain Shadows Montessori SchoolMontessori	PK–4	44	6.3	Nonsectarian
Tara Performing Arts High SchoolSpecial program	9–12	39	3.8	Nonsectarian

Getting in, and keeping up

Private school entrance exams: format, scoring, and dates for the ISEE, SSAT, and HSPT.
CMAS practice tests and score levels, the test public schools in Colorado give.
Using a 529 plan for K-12 tuition and tutoring in Colorado.
Colleges in Colorado, for families already looking ahead.

Email me the Boulder private school list

A link to this list, plus our guide to the entrance exams these schools use.

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Frequently asked questions

How many private schools are in Boulder, Colorado?

11 private schools in Boulder, Colorado with at least 30 students answered the 2023-24 federal Private School Universe Survey. Schools that did not answer are not counted, so the real number is higher.

What is the largest private school in Boulder, Colorado?

Among schools that answered the survey, Boulder Country Day School in Boulder is the largest, with 281 students in grades PK–8.

How big are classes at private schools in Boulder, Colorado?

The survey reports students per teacher, not class size. The median private school in Boulder, Colorado has 6.3 students per teacher and 114 students in total.

Do private schools require an entrance exam?

Many independent schools ask for the ISEE or SSAT, and many Catholic high schools use the HSPT. Each school sets its own rule, so check the admissions page of every school on your list.

Source: NCES Private School Universe Survey (PSS), 2023-24 public-use data file, National Center for Education Statistics. Schools that answered the survey and enrolled at least 30 students. Amish schools are left out. Schools report their own figures, and a school that did not answer the survey does not appear.