[+] Show Closed Private Schools in Boulder, Colorado

Boulder, Colorado Private Schools (Closed)

Blue Sky Kindergarten

Gr: PK-K | 34 students

Daycare / Preschool

3046 11th St

Boulder, CO 80304

(303) 443-4965

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Countryside Montessori School

Gr: PK-K | 33 students

Montessori School

5524 Baseline Rd

Boulder, CO 80303

(303) 494-3100

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Boulder, CO Private School Trends (10-Year)

Private Schools

-4.5% (-1 school) 10-yr

2,073

Students

-17.1% (-428 students) 10-yr

$25,881

Avg. Tuition

+73.9% (+$10,996) 10-yr

Avg. Class Size

+7.7% (+1 student) 10-yr

24%

Students of Color

+84.6% (+11.0 pp) 10-yr

7:1

Student-Teacher Ratio

-22.2% (-2.0) 10-yr

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Enrollment & Diversity

Category

This Town (Boulder)

This State (CO)

# Schools

21 Schools

501 Schools

View Data

Trends in Total Number of Private Schools
Year	Boulder, CO Total Schools
2025	21
2024	22
2023	19
2022	21
2021	21
2020	21
2019	21
2018	21
2017	21
2016	21
2015	22

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# Students

2,073 Students

71,307 Students

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Trends in the Average Number of Students Per Private School
Year	Boulder, CO Avg	Colorado (CO)	National
2025	105	160	179
2024	102	153	172
2023	117	155	174
2022	114	155	185
2021	112	153	180
2020	111	148	171
2019	113	148	175
2018	113	157	172
2017	111	158	180
2016	110	157	178
2015	114	138	167

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% Students of Color

24%

25%

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Percentage of Students of Color Trends (2015-2025)
Year	Boulder, CO Avg	Colorado (CO)	National
2025	25%	25%	34%
2024	23%	25%	34%
2023	22%	25%	33%
2022	17%	25%	33%
2021	16%	25%	32%
2020	13%	25%	32%
2019	11%	24%	31%
2018	11%	23%	31%
2017	18%	27%	32%
2016	18%	27%	32%
2015	13%	27%	32%

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0.58

0.62

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Diversity Score Trends
Year	Boulder, CO Avg	Colorado (CO)	National
2025	0.58	0.63	0.65
2024	0.58	0.63	0.65
2023	0.58	0.62	0.65
2022	0.55	0.62	0.64
2021	0.55	0.63	0.64
2020	0.54	0.63	0.64
2019	0.53	0.62	0.63
2018	0.53	0.62	0.63
2017	0.50	0.62	0.61
2016	0.49	0.62	0.61
2015	0.49	0.62	0.61

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▼ Show more data/charts: racial breakdown

# American Indian Students

12 Students

404 Students

% American Indian Students

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Percentage of Private School Students of American Indian Trends
Year	Boulder, CO Avg	Colorado (CO)	National
2025	1%	1%	1%
2024	1%	1%	1%
2023	1%	1%	1%
2017	1%	1%	1%
2016	1%	1%	1%
2015	1%	1%	1%

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# Asian Students

30 Students

1,604 Students

% Asian Students

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

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# Hispanic Students

99 Students

5,866 Students

% Hispanic Students

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Hispanic Student Percentage Trends
Year	Boulder, CO Avg	Colorado (CO)	National
2025	5%	9%	9%
2024	5%	9%	9%
2023	5%	8%	9%
2022	5%	9%	8%
2021	5%	9%	9%
2020	5%	9%	9%
2019	4%	9%	8%
2018	4%	8%	8%
2017	2%	8%	8%
2016	2%	8%	8%
2015	2%	8%	8%

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# Black Students

98 Students

1,900 Students

% Black Students

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Black Student Percentage Trends
Year	Boulder, CO Avg	Colorado (CO)	National
2025	5%	3%	7%
2024	5%	3%	7%
2023	4%	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

1,127 Students

33,658 Students

% White Students

57%

48%

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White Student Percentage Trends
Year	Boulder, CO Avg	Colorado (CO)	National
2025	57%	48%	52%
2024	56%	48%	52%
2023	58%	48%	52%
2022	58%	47%	54%
2021	59%	47%	54%
2020	60%	47%	54%
2019	61%	48%	56%
2018	62%	45%	56%
2017	65%	46%	58%
2016	65%	46%	58%
2015	66%	50%	58%

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# Hawaiian Students

n/a

65 Students

% Hawaiian Students

n/a

# Two or more races Students

n/a

% of Two or more races Students

n/a

# Others Students

603 Students

26,059 Students

% of Others Students

31%

38%

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Other Races Student Percentage Trends
Year	Boulder, CO Avg	Colorado (CO)	National
2025	30%	37%	26%
2024	32%	37%	26%
2023	30%	38%	25%
2022	33%	39%	25%
2021	32%	39%	25%
2020	31%	38%	24%
2019	31%	38%	24%
2018	30%	42%	23%
2017	29%	40%	22%
2016	29%	40%	22%
2015	28%	36%	21%

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All Ethnic Groups

Academics

# Teachers

297 Teachers

6,299 Teachers

Average Student-Teacher Ratio

7:1

11:1

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Student-Teacher Ratio Trends (2015-2025)
Year	Boulder, CO Avg	Colorado (CO)	National
2025	7:1	11:1	11:1
2024	7:1	12:1	11:1
2023	7:1	12:1	11:1
2022	7:1	12:1	11:1
2021	7:1	12:1	11:1
2020	8:1	12:1	12:1
2019	7:1	12:1	12:1
2018	8:1	12:1	12:1
2017	8:1	12:1	12:1
2016	8:1	12:1	12:1
2015	9:1	12:1	12:1

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% Average Faculty w/Advanced Degree

65%

57%

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Percentage of Faculty With Advanced Degrees Trends (2015-2025)
Year	Boulder, CO Avg	Colorado (CO)	National
2025	65%	56%	55%
2024	64%	57%	54%
2023	64%	57%	54%
2022	67%	56%	54%
2021	82%	56%	54%
2020	79%	56%	54%
2019	78%	57%	53%
2018	76%	57%	53%
2017	66%	53%	53%
2016	67%	51%	52%
2015	72%	50%	52%

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Average Class Size

14 students

15 students

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

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Average Number of AP Courses

15 courses

12 courses

Tuition & Aid

Average Yearly Tuition Cost

$25,881

$14,768

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Tuition Cost Trends (2015-2025)
Year	Boulder, CO Avg	Colorado (CO)	National
2025	$25,657	$14,827	$15,012
2024	$26,114	$13,632	$13,254
2023	$22,971	$12,981	$12,626
2022	$22,749	$12,703	$12,187
2021	$21,605	$12,363	$11,800
2020	$21,216	$11,771	$11,512
2019	$20,828	$11,296	$11,293
2018	$19,306	$11,384	$11,017
2017	$17,618	$10,593	$10,708
2016	$15,318	$10,223	$10,356
2015	$14,885	$9,876	$9,939

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Average Summer Program Cost

$888

$1,578

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Summer Program Cost Trends (2018-2025)
Year	Boulder, CO Avg	Colorado (CO)	National
2025	$1,017	$1,689	$1,152
2024	$1,017	$1,574	$1,128
2023	$983	$741	$1,156
2022	$983	$853	$1,102
2021	$650	$782	$1,125
2020	$475	$816	$1,217
2019	$463	$609	$1,305
2018	$500	$500	$1,108

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Average % on Financial Aid

21%

29%

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Percent on Financial Aid Trends (2015-2025)
Year	Boulder, CO Avg	Colorado (CO)	National
2025	21%	29%	34%
2024	21%	28%	34%
2023	23%	28%	34%
2022	23%	28%	33%
2021	20%	28%	33%
2020	21%	29%	32%
2019	21%	29%	31%
2018	20%	29%	30%
2017	17%	29%	30%
2016	18%	29%	29%
2015	11%	28%	28%

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Average Financial Aid Grant

$7,400

$6,463

View Data

Financial Aid Grant Trends (2015-2025)
Year	Boulder, CO Avg	Colorado (CO)	National
2025	$7,400	$6,269	$7,073
2024	$6,800	$5,056	$6,930
2023	$6,800	$4,967	$6,469
2022	$6,800	$4,768	$6,289
2021	$6,375	$4,639	$6,055
2020	$3,367	$4,407	$5,921
2019	$3,367	$3,978	$5,795
2018	$3,367	$3,894	$5,456
2017	$3,367	$3,205	$5,319
2016	$5,033	$3,355	$5,105
2015	$5,033	$3,170	$5,030

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Admissions & Athletics

Average Acceptance Rate

73%

84%

View Data

Acceptance Rate Trends (2015-2025)
Year	Boulder, CO Avg	Colorado (CO)	National
2025	73%	84%	81%
2024	91%	91%	85%
2023	90%	91%	85%
2022	91%	90%	85%
2021	95%	90%	85%
2020	93%	90%	85%
2019	95%	91%	85%
2018	95%	90%	85%
2017	95%	91%	85%
2016	88%	91%	85%
2015	94%	92%	85%

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Average Number of Extracurriculars

6 extracurriculars

7 extracurriculars

Average Number of Sports

3 sports

6 sports

Frequently Asked Questions

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

The private schools in Boulder, CO include Mt. Zion Lutheran Preschool, Boulder Country Day, and Bixby School.

How many private schools are located in Boulder?

21 private schools are located in Boulder.

How much do private schools cost in Boulder?

The average tuition cost is $25,881, which is higher than the Colorado private school average tuition cost of $14,768.

How diverse are private schools in Boulder?

Boulder private schools are approximately 24% minority students, which is lower than the Colorado private school average of 25%.

What percentage of students in Boulder go to private school?

14% of all K-12 students in Boulder are educated in private schools (compared to the CO state average of 8%).

What percentage of private schools are religiously affiliated in Boulder?

19% of private schools in Boulder are religiously affiliated (most commonly Lutheran Church Missouri Synod and Catholic).

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

Popular comparisons of private schools in Boulder include: Boulder Waldorf Kindergarten vs. Boulder Country Day, Bixby School vs. Boulder Country Day, Mapleton Montessori School vs. Jarrow Montessori School

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Boulder, CO Private School Trends (10-Year)

Trends in Total Number of Private Schools

Trends in the Average Number of Students Per Private School

Percentage of Students of Color Trends (2015-2025)

Diversity Score Trends

Percentage of Private School Students of American Indian Trends

Asian Student Percentage Trends

Hispanic Student Percentage Trends

Black Student Percentage Trends

White Student Percentage Trends

Other Races Student Percentage Trends

Student-Teacher Ratio Trends (2015-2025)

Percentage of Faculty With Advanced Degrees Trends (2015-2025)

Class Size Trends (2015-2025)

Tuition Cost Trends (2015-2025)

Summer Program Cost Trends (2018-2025)

Percent on Financial Aid Trends (2015-2025)

Financial Aid Grant Trends (2015-2025)

Acceptance Rate Trends (2015-2025)

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