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

Overview

Trends in Total Number of Private Schools

Year	Boulder County Total Schools
2025	53
2024	59
2023	53
2022	56
2021	57
2020	58
2019	58
2018	60
2017	58
2016	57
2015	65

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Private schools down 7 in Boulder County, from 60 in 2018 to 53 in 2025.

# Students

4,871 Students

71,310 Students

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

Trends in the Average Number of Students Per Private School

Year	Boulder County Average	Colorado (CO) Average	National Average
2025	102	160	179
2024	96	153	172
2023	110	155	174
2022	108	155	185
2021	108	153	180
2020	106	148	171
2019	111	148	175
2018	107	157	172
2017	106	158	180
2016	102	157	178
2015	106	138	167

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School size held near 102 in Boulder County, with the average private school enrolling 102 students in 2016 and 102 again in 2025.

% Average Students of Color

22%

25%

View Data

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

Percentage of Students of Color Trends (2015-2025)

Year	Boulder County Average	Colorado (CO) Average	National Average
2025	22%	25%	34%
2024	21%	25%	34%
2023	23%	25%	33%
2022	19%	25%	33%
2021	19%	25%	32%
2020	18%	25%	32%
2019	14%	24%	31%
2018	14%	23%	31%
2017	18%	27%	32%
2016	20%	27%	32%
2015	16%	27%	32%

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Students of color up 2 points in Boulder County private schools, rising from 20% in 2016 to 22% in 2025.

Academics and Faculty:

# Teachers

563 Teachers

6,325 Teachers

Average Student-Teacher Ratio

8:1

11:1

View Data

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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Student-teacher ratio down 2 in Boulder County private schools, from 10:1 in 2016 to 8:1 in 2025.

% Average Faculty w/Advanced Degree

52%

57%

View Data

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)

1246

Average ACT score

(Out of 36)

Tuition and Acceptance Rate:

Average Yearly Tuition Cost

$19,378

$13,967

View Data

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	$19,383	$14,758	$13,694
2024	$19,093	$14,245	$13,340
2023	$17,056	$13,454	$12,825
2022	$16,953	$12,962	$12,321
2021	$16,103	$12,650	$12,072
2020	$15,650	$12,306	$11,784
2019	$15,114	$12,112	$11,547
2018	$14,714	$11,766	$11,280
2017	$14,384	$11,371	$10,994
2016	$12,997	$10,723	$10,614
2015	$12,776	$10,475	$10,195

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Tuition up 49% in Boulder County, rising from $12,997 in 2016 to $19,383 in 2025.

Average Summer Program Cost

$1,438

$1,647

Average % on Financial Aid

22%

29%

View Data

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

$6,686

$6,951

View Data

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	91%	91%	85%
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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Acceptance rate holds around 91% in Boulder County, ending at 91% in 2025, the same as Colorado and higher than the national 85%.

Average Endowment Size

$7 million

$24.51 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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Diversity score up 0.05 in Boulder County private schools, rising from 0.54 in 2016 to 0.59 in 2025.

# American Indian Students

14 Students

404 Students

% American Indian Students

<1%

View Data

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

1,598 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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Asian enrollment steady at 2% in Boulder County private schools, matching Colorado at 2% in 2025 and remaining below the U.S. at 5%.

# Hispanic Students

252 Students

5,866 Students

% Hispanic Students

View Data

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

1,896 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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Black student share up 2 points in Boulder County private schools, rising from 1% in 2016 to 3% in 2025 while the U.S. stayed at 7% or 8%.

# White Students

2,493 Students

33,525 Students

% White Students

53%

48%

View Data

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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White share down 6 points in Boulder County private schools, from 58% in 2016 to 52% in 2025.

# Hawaiian Students

0 Students

65 Students

% Hawaiian Students

<1%

# Others Students

1,745 Students

26,384 Students

% of Others Students

37%

38%

View Data

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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Other-race share up 4 points in Boulder County private schools, rising from 34% in 2016 to 38% in 2025.

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 Bixby School, Fusion Academy Boulder County, and Boulder Country Day.

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 $19,378, which is higher than the Colorado private school average tuition cost of $13,967.

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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