[+] Show Closed Private Schools in Boulder County, Colorado

Overview

Academics and Faculty:

# Teachers

563 Teachers

6,360 Teachers

Average Student-Teacher Ratio

8:1

11:1

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Showing 2016–2025. Full 11-year historical data available below ↓

Student-Teacher Ratio Trends (2015-2025)
Year	Boulder County Average	Colorado (CO) Average	National Average
2025	8:1	11:1	11:1
2024	8:1	12:1	11:1
2023	9:1	12:1	11:1
2022	8:1	12:1	11:1
2021	9:1	12:1	11:1
2020	9:1	12:1	12:1
2019	10:1	12:1	12:1
2018	10:1	12:1	12:1
2017	10:1	12:1	12:1
2016	10:1	12:1	12:1
2015	11:1	12:1	12:1

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% Average Faculty w/Advanced Degree

52%

57%

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Showing 2016–2025. Full 11-year historical data available below ↓

Percentage of Faculty With Advanced Degrees Trends (2015-2025)
Year	Boulder County Average	Colorado (CO) Average	National Average
2025	52%	56%	55%
2024	54%	57%	54%
2023	57%	57%	54%
2022	55%	56%	54%
2021	61%	56%	54%
2020	65%	56%	54%
2019	65%	57%	53%
2018	68%	57%	53%
2017	62%	53%	53%
2016	65%	51%	52%
2015	67%	50%	52%

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Average Class Size

14 students

15 students

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Showing 2016–2025. Full 11-year historical data available below ↓

Class Size Trends (2015-2025)
Year	Boulder County Average	Colorado (CO) Average	National Average
2025	14	15	15
2024	13	15	15
2023	13	15	15
2022	14	15	15
2021	14	15	15
2020	14	15	15
2019	14	15	15
2018	13	15	15
2017	13	15	15
2016	13	15	15
2015	12	15	15

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Average Number of AP Courses

17 courses

12 courses

Average SAT score

1385

(Out of 1600)

1257

Average ACT score

(Out of 36)

Tuition and Acceptance Rate:

Average Yearly Tuition Cost

$18,879

$13,959

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Showing 2016–2025. Full 11-year historical data available below ↓

Tuition Cost Trends (2015-2025)
Year	Boulder County Average	Colorado (CO) Average	National Average
2025	$18,062	$14,827	$15,012
2024	$17,792	$14,312	$14,622
2023	$15,894	$13,517	$14,057
2022	$15,797	$13,022	$13,504
2021	$15,005	$12,709	$13,232
2020	$14,584	$12,363	$12,915
2019	$14,084	$12,169	$12,656
2018	$13,711	$11,821	$12,363
2017	$13,404	$11,425	$12,049
2016	$12,112	$10,773	$11,633
2015	$11,906	$10,523	$11,174

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Average Summer Program Cost

$1,438

$1,579

Average % on Financial Aid

22%

29%

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Showing 2016–2025. Full 11-year historical data available below ↓

Percent on Financial Aid Trends (2015-2025)
Year	Boulder County Average	Colorado (CO) Average	National Average
2025	22%	29%	34%
2024	21%	28%	34%
2023	23%	28%	34%
2022	23%	28%	33%
2021	21%	28%	33%
2020	22%	29%	32%
2019	22%	29%	31%
2018	22%	29%	30%
2017	20%	29%	30%
2016	23%	29%	29%
2015	20%	28%	28%

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Average Financial Aid Grant

$4,655

$6,573

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Showing 2016–2025. Full 11-year historical data available below ↓

Financial Aid Grant Trends (2015-2025)
Year	Boulder County Average	Colorado (CO) Average	National Average
2025	$4,728	$6,269	$7,073
2024	$3,832	$5,056	$6,930
2023	$3,832	$4,967	$6,469
2022	$3,832	$4,768	$6,289
2021	$3,365	$4,639	$6,055
2020	$2,188	$4,407	$5,921
2019	$2,188	$3,978	$5,795
2018	$2,563	$3,894	$5,456
2017	$2,625	$3,205	$5,319
2016	$4,029	$3,355	$5,105
2015	$3,775	$3,170	$5,030

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Average Acceptance Rate

80%

88%

View Data

Showing 2016–2025. Full 11-year historical data available below ↓

Acceptance Rate Trends (2015-2025)
Year	Boulder County Average	Colorado (CO) Average	National Average
2025	80%	84%	81%
2024	93%	91%	85%
2023	91%	91%	85%
2022	92%	90%	85%
2021	93%	90%	85%
2020	92%	90%	85%
2019	93%	91%	85%
2018	92%	90%	85%
2017	93%	91%	85%
2016	89%	91%	85%
2015	93%	92%	85%

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Average Endowment Size

$7 million

$23.42 million

Students by Ethnicity:

0.59

0.62

View Data

Showing 2016–2025. Full 11-year historical data available below ↓

Diversity Score Trends
Year	Boulder County Average	Colorado (CO) Average	National Average
2025	0.59	0.63	0.65
2024	0.59	0.63	0.65
2023	0.60	0.62	0.65
2022	0.58	0.62	0.64
2021	0.58	0.63	0.64
2020	0.58	0.63	0.64
2019	0.57	0.62	0.63
2018	0.57	0.62	0.63
2017	0.55	0.62	0.61
2016	0.54	0.62	0.61
2015	0.55	0.62	0.61

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# American Indian Students

14 Students

404 Students

% American Indian Students

<1%

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Percentage of Private School Students of American Indian Trends
Year	Boulder County Average	Colorado (CO) Average	National Average
2017	1%	1%	1%
2016	1%	1%	1%
2015	1%	1%	1%

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# Asian Students

98 Students

1,604 Students

% Asian Students

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Showing 2016–2025. Full 11-year historical data available below ↓

Asian Student Percentage Trends
Year	Boulder County Average	Colorado (CO) Average	National Average
2025	2%	2%	5%
2024	3%	2%	5%
2023	2%	2%	5%
2022	3%	3%	4%
2021	3%	3%	4%
2020	3%	3%	4%
2019	2%	2%	4%
2018	3%	3%	4%
2017	2%	2%	4%
2016	2%	2%	4%
2015	1%	2%	4%

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# Hispanic Students

252 Students

5,866 Students

% Hispanic Students

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Showing 2016–2025. Full 11-year historical data available below ↓

Hispanic Student Percentage Trends
Year	Boulder County Average	Colorado (CO) Average	National Average
2025	5%	9%	9%
2024	5%	9%	9%
2023	6%	8%	9%
2022	6%	9%	8%
2021	6%	9%	9%
2020	6%	9%	9%
2019	5%	9%	8%
2018	5%	8%	8%
2017	4%	8%	8%
2016	4%	8%	8%
2015	3%	8%	8%

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# Black Students

141 Students

1,900 Students

% Black Students

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Showing 2016–2025. Full 11-year historical data available below ↓

Black Student Percentage Trends
Year	Boulder County Average	Colorado (CO) Average	National Average
2025	3%	3%	7%
2024	3%	3%	7%
2023	3%	3%	8%
2022	1%	2%	7%
2021	1%	2%	7%
2020	1%	3%	8%
2019	1%	3%	7%
2018	1%	2%	7%
2017	1%	3%	7%
2016	1%	3%	7%
2015	1%	3%	8%

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# White Students

2,493 Students

33,658 Students

% White Students

53%

48%

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Showing 2016–2025. Full 11-year historical data available below ↓

White Student Percentage Trends
Year	Boulder County Average	Colorado (CO) Average	National Average
2025	52%	48%	52%
2024	52%	48%	52%
2023	51%	48%	52%
2022	54%	47%	54%
2021	54%	47%	54%
2020	54%	47%	54%
2019	54%	48%	56%
2018	53%	45%	56%
2017	56%	46%	58%
2016	58%	46%	58%
2015	56%	50%	58%

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# Hawaiian Students

0 Students

65 Students

% Hawaiian Students

<1%

# Others Students

1,745 Students

26,143 Students

% of Others Students

37%

38%

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Showing 2016–2025. Full 11-year historical data available below ↓

Other Races Student Percentage Trends
Year	Boulder County Average	Colorado (CO) Average	National Average
2025	38%	37%	26%
2024	37%	37%	26%
2023	38%	38%	25%
2022	36%	39%	25%
2021	36%	39%	25%
2020	36%	38%	24%
2019	38%	38%	24%
2018	38%	42%	23%
2017	36%	40%	22%
2016	34%	40%	22%
2015	38%	36%	21%

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All Ethnic Groups

Extracurriculars and Sports:

Average Number of Extracurriculars

6 extracurriculars

7 extracurriculars

Average Number of Sports

4 sports

6 sports

Frequently Asked Questions

What are the top ranked private schools in Boulder County, CO?

The private schools in Boulder County, CO include Boulder Country Day, Fusion Academy Boulder County, and Dawson School.

How many private schools are located in Boulderunty?

48 private schools are located in Boulderunty.

How much do private schools cost in Boulderunty?

The average tuition cost is $18,879, which is higher than the Colorado private school average tuition cost of $13,959.

How diverse are private schools in Boulderunty?

Boulderunty private schools are approximately 22% minority students, which is lower than the Colorado private school average of 25%.

What percentage of students in Boulderunty go to private school?

10% of all K-12 students in Boulderunty are educated in private schools (compared to the CO state average of 8%).

What percentage of private schools are religiously affiliated in Boulderunty?

23% of private schools in Boulderunty are religiously affiliated (most commonly Christian and Catholic).

Which private schools in Boulderunty are often viewed compared to one another?

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