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

Overview

Trends in Total Number of Private High Schools

Year	Boulder County Total Schools
2025	13
2024	14
2023	12
2022	13
2021	12
2020	13
2019	13
2018	14
2017	13
2016	15
2015	17

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# Students

1,028 Students

28,103 Students

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Showing 2016–2025. View full 11-year historical data

Trends in the Average Number of Students Per Private High School

Year	Boulder County Average	Colorado (CO) Average	National Average
2025	98	233	253
2024	93	222	245
2023	115	223	247
2022	133	229	257
2021	132	223	249
2020	122	212	235
2019	126	207	242
2018	115	209	238
2017	120	208	246
2016	107	201	241
2015	104	176	220

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% Average Students of Color

13%

25%

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Showing 2016–2025. View full 11-year historical data

Percentage of Students of Color Trends (2015-2025)

Year	Boulder County Average	Colorado (CO) Average	National Average
2025	12%	25%	32%
2024	12%	25%	31%
2023	11%	22%	31%
2022	14%	25%	30%
2021	13%	25%	30%
2020	13%	24%	29%
2019	13%	23%	29%
2018	13%	23%	28%
2017	13%	28%	30%
2016	13%	29%	30%
2015	14%	31%	30%

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Academics and Faculty:

# Teachers

190 Teachers

3,049 Teachers

Average Student-Teacher Ratio

5:1

9:1

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Showing 2016–2025. View full 11-year historical data

Student-Teacher Ratio Trends (2015-2025)

Year	Boulder County Average	Colorado (CO) Average	National Average
2025	6:1	10:1	10:1
2024	6:1	10:1	10:1
2023	6:1	10:1	10:1
2022	7:1	10:1	10:1
2021	7:1	10:1	10:1
2020	8:1	10:1	10:1
2019	8:1	10:1	10:1
2018	8:1	10:1	10:1
2017	8:1	10:1	10:1
2016	8:1	10:1	10:1
2015	8:1	10:1	10:1

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% Average Faculty w/Advanced Degree

58%

56%

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Percentage of Faculty With Advanced Degrees Trends (2017-2025)

Year	Boulder County Average	Colorado (CO) Average	National Average
2025	51%	55%	57%
2024	56%	56%	57%
2023	57%	57%	57%
2022	52%	57%	56%
2021	60%	57%	56%
2020	73%	59%	56%
2019	76%	59%	55%
2018	82%	59%	55%
2017	72%	57%	55%

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Average Class Size

9 students

14 students

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Showing 2016–2025. View full 11-year historical data

Class Size Trends (2015-2025)

Year	Boulder County Average	Colorado (CO) Average	National Average
2025	9	13	14
2024	9	13	14
2023	9	13	14
2022	9	13	14
2021	10	14	14
2020	10	14	14
2019	10	14	14
2018	10	14	14
2017	10	14	14
2016	10	14	14
2015	12	13	14

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Average Number of AP Courses

18 courses

13 courses

Average SAT score

1385

(Out of 1600)

1255

Average ACT score

(Out of 36)

Tuition and Acceptance Rate:

Average Yearly Tuition Cost

$28,592

$19,130

View Data

Showing 2016–2025. View full 11-year historical data

Tuition Cost Trends (2015-2025)

Year	Boulder County Average	Colorado (CO) Average	National Average
2025	$23,939	$17,855	$17,512
2024	$23,344	$17,157	$17,025
2023	$21,717	$16,346	$16,355
2022	$21,774	$15,751	$15,719
2021	$20,582	$15,461	$15,395
2020	$19,969	$15,037	$15,015
2019	$19,149	$14,776	$14,682
2018	$19,149	$14,375	$14,330
2017	$18,809	$13,677	$13,937
2016	$16,309	$12,869	$13,427
2015	$15,875	$12,583	$12,864

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Average Summer Program Cost

$975

Average % on Financial Aid

30%

34%

View Data

Showing 2016–2025. View full 11-year historical data

Percent on Financial Aid Trends (2015-2025)

Year	Boulder County Average	Colorado (CO) Average	National Average
2025	31%	33%	38%
2024	31%	32%	37%
2023	31%	32%	36%
2022	31%	32%	36%
2021	27%	33%	36%
2020	30%	34%	35%
2019	30%	34%	34%
2018	27%	33%	33%
2017	26%	32%	32%
2016	27%	33%	31%
2015	23%	33%	30%

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Average Financial Aid Grant

$11,930

$9,788

View Data

Financial Aid Grant Trends (2022-2024)

Year	Boulder County Average	Colorado (CO) Average	National Average
2024	$6,330	$6,512	$9,498
2023	$6,330	$6,202	$8,890
2022	$6,330	$5,942	$8,717

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Average Acceptance Rate

78%

87%

Average Endowment Size

$4 million

$27.31 million

Students by Ethnicity:

0.25

0.57

View Data

Showing 2016–2025. View full 11-year historical data

Diversity Score Trends

Year	Boulder County Average	Colorado (CO) Average	National Average
2025	0.26	0.58	0.61
2024	0.24	0.57	0.60
2023	0.31	0.56	0.60
2022	0.42	0.57	0.58
2021	0.40	0.57	0.57
2020	0.39	0.57	0.57
2019	0.37	0.56	0.56
2018	0.36	0.58	0.55
2017	0.40	0.56	0.54
2016	0.40	0.56	0.54
2015	0.42	0.55	0.53

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# American Indian Students

4 Students

259 Students

% American Indian Students

<1%

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Percentage of Private High School Students of American Indian Trends

Year	Boulder County Average	Colorado (CO) Average	National Average
2017	2%	1%	1%
2016	3%	1%	1%
2015	3%	1%	1%

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# Asian Students

54 Students

879 Students

% Asian Students

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Showing 2016–2025. View full 11-year historical data

Asian Student Percentage Trends

Year	Boulder County Average	Colorado (CO) Average	National Average
2025	4%	3%	5%
2024	5%	3%	6%
2023	5%	3%	6%
2022	4%	3%	5%
2021	5%	3%	5%
2020	4%	3%	5%
2019	4%	3%	5%
2018	4%	3%	5%
2017	2%	3%	4%
2016	2%	3%	4%
2015	2%	3%	4%

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# Hispanic Students

65 Students

2,614 Students

% Hispanic Students

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Showing 2016–2025. View full 11-year historical data

Hispanic Student Percentage Trends

Year	Boulder County Average	Colorado (CO) Average	National Average
2025	5%	10%	9%
2024	5%	10%	9%
2023	5%	8%	8%
2022	5%	9%	8%
2021	5%	10%	8%
2020	6%	10%	8%
2019	6%	10%	8%
2018	6%	10%	8%
2017	5%	10%	7%
2016	5%	10%	8%
2015	6%	10%	8%

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# Black Students

24 Students

1,068 Students

% Black Students

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Showing 2016–2025. View full 11-year historical data

Black Student Percentage Trends

Year	Boulder County Average	Colorado (CO) Average	National Average
2025	2%	4%	8%
2024	2%	4%	8%
2023	1%	4%	8%
2022	1%	3%	8%
2021	1%	3%	8%
2020	1%	4%	8%
2019	1%	4%	8%
2018	1%	4%	8%
2017	1%	3%	8%
2016	1%	3%	8%
2015	1%	4%	9%

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# White Students

1,030 Students

17,497 Students

% White Students

86%

61%

View Data

Showing 2016–2025. View full 11-year historical data

White Student Percentage Trends

Year	Boulder County Average	Colorado (CO) Average	National Average
2025	86%	61%	59%
2024	87%	62%	60%
2023	82%	62%	60%
2022	75%	61%	62%
2021	76%	61%	63%
2020	77%	62%	64%
2019	79%	63%	64%
2018	79%	61%	65%
2017	76%	62%	66%
2016	76%	62%	66%
2015	75%	64%	66%

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# Hawaiian Students

0 Students

37 Students

% Hawaiian Students

<1%

# Others Students

15 Students

6,376 Students

% of Others Students

22%

View Data

Showing 2016–2025. View full 11-year historical data

Other Races Student Percentage Trends

Year	Boulder County Average	Colorado (CO) Average	National Average
2025	3%	21%	17%
2024	1%	20%	15%
2023	7%	21%	16%
2022	15%	22%	16%
2021	13%	22%	15%
2020	12%	20%	14%
2019	10%	19%	14%
2018	10%	21%	13%
2017	14%	21%	14%
2016	13%	21%	13%
2015	13%	18%	12%

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All Ethnic Groups

Extracurriculars and Sports:

Average Number of Extracurriculars

5 extracurriculars

9 extracurriculars

Average Number of Sports

5 sports

8 sports

Frequently Asked Questions

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

The private high schools in Boulder County, CO include Temple Grandin School, Fusion Academy Boulder County, and Dawson School.

How many private high schools are located in Boulderunty?

10 private high schools are located in Boulderunty.

How diverse are private high schools in Boulderunty?

Boulderunty private high schools are approximately 13% minority students, which is lower than the Colorado private school average of 25%.

What percentage of private high schools are religiously affiliated in Boulderunty?

25% of private high schools in Boulderunty are religiously affiliated (most commonly Other and Church of Christ).

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

Popular comparisons of private high schools in Boulderunty include: Transitional School vs. Dawson School, Transitional School vs. Crossroads School

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