Top Ranked La Plata County Private High Schools (2026-27)

Colorado Timberline Academy

Gr: 9-12 | 30 students

Avg. class size: 6 students

Sports: 10 | Extracurriculars: 3

Alternative School

454 Academy Drive

Durango, CO 81301

(970) 247-5898

(1)

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[+] Show Closed Private Schools in La Plata County, Colorado

La Plata County Private High Schools (Closed)

Columbine Christian School

Gr: PK-8 | 41 students

Seventh Day Adventist

1775 Florida Rd

Durango, CO 81301

(970) 259-1189

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Overview

Academics and Faculty:

# Teachers

10 Teachers

3,079 Teachers

Average Student-Teacher Ratio

3:1

9:1

View Data

Student-Teacher Ratio Trends (2015-2025)
Year	La Plata County Average	Colorado (CO) Average	National Average
2025	3:1	10:1	10:1
2024	3:1	10:1	10:1
2023	3:1	10:1	10:1
2022	3:1	10:1	10:1
2021	3:1	10:1	10:1
2020	3:1	10:1	10:1
2019	3:1	10:1	10:1
2018	3:1	10:1	10:1
2017	7:1	10:1	10:1
2016	7:1	10:1	10:1
2015	7:1	10:1	10:1

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% Average Faculty w/Advanced Degree

90%

56%

View Data

Percentage of Faculty With Advanced Degrees Trends (2015-2025)
Year	La Plata County Average	Colorado (CO) Average	National Average
2025	90%	55%	57%
2024	90%	56%	57%
2023	90%	57%	57%
2022	90%	57%	56%
2021	90%	57%	56%
2020	90%	59%	56%
2019	90%	59%	55%
2018	85%	59%	55%
2017	85%	57%	55%
2016	85%	54%	54%
2015	90%	49%	54%

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Average Class Size

6 students

13 students

View Data

Class Size Trends (2016-2025)
Year	La Plata County Average	Colorado (CO) Average	National Average
2025	6	13	14
2024	6	13	14
2023	6	13	14
2022	6	13	14
2021	6	14	14
2020	6	14	14
2019	6	14	14
2018	6	14	14
2017	6	14	14
2016	8	14	14

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Average Number of AP Courses

7 courses

13 courses

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Trends in Average Number of AP Courses Offered
Year	La Plata County Average	Colorado (CO) Average	National Average
2025	7	13	13
2024	7	13	12
2023	7	13	12
2022	7	13	12
2021	7	13	12
2020	7	12	12
2019	7	12	11

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Average SAT score

1290

(Out of 1600)

1267

View Data

SAT Score Trends (2017-2025)
Year	La Plata County Average	Colorado (CO) Average	National Average
2025	1290	1254	1233
2024	1290	1251	1231
2023	1290	1243	1229
2022	1290	1253	1230
2021	1290	1262	1230
2020	1290	1300	1227
2019	1290	1289	1226
2018	1290	1238	1226
2017	1290	1238	1233

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Average ACT score

(Out of 36)

View Data

ACT Score Trends (2016-2025)
Year	La Plata County Average	Colorado (CO) Average	National Average
2025	23	25	26
2024	23	25	26
2023	23	25	26
2022	23	25	26
2021	23	25	26
2020	23	25	26
2019	23	25	25
2018	23	25	25
2017	23	24	25
2016	23	24	25

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Tuition and Acceptance Rate:

Average Yearly Tuition Cost

$35,000

$17,092

View Data

Tuition Cost Trends (2015-2025)
Year	La Plata County Average	Colorado (CO) Average	National Average
2025	$35,000	$16,723	$17,997
2024	$35,000	$16,552	$17,011
2023	$35,000	$15,994	$16,191
2022	$35,000	$15,903	$15,821
2021	$35,000	$15,623	$15,331
2020	$19,750	$15,191	$15,046
2019	$19,750	$14,387	$14,791
2018	$19,250	$14,513	$14,527
2017	$18,750	$13,525	$14,161
2016	$18,000	$12,322	$13,713
2015	$4,500	$11,546	$13,065

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Average Acceptance Rate

90%

84%

View Data

Acceptance Rate Trends (2016-2025)
Year	La Plata County Average	Colorado (CO) Average	National Average
2025	90%	82%	79%
2024	90%	86%	81%
2023	90%	87%	81%
2022	90%	88%	81%
2021	90%	88%	81%
2020	90%	89%	81%
2019	90%	90%	81%
2018	90%	91%	80%
2017	90%	92%	81%
2016	90%	91%	80%

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Average Endowment Size

$5 million

$25.45 million

Students by Ethnicity:

0.34

0.57

View Data

Diversity Score Trends
Year	La Plata County Average	Colorado (CO) Average	National Average
2025	0.34	0.58	0.61
2024	0.34	0.57	0.60
2023	0.34	0.56	0.60
2022	0.34	0.57	0.58
2021	0.34	0.57	0.57
2020	0.20	0.57	0.57
2019	0.20	0.56	0.56
2018	0.22	0.58	0.55
2017	0.44	0.56	0.54
2016	0.45	0.56	0.54
2015	0.42	0.55	0.53

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# American Indian Students

n/a

259 Students

% American Indian Students

n/a

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Percentage of Private High School Students of American Indian Trends
Year	La Plata 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

1 Student

880 Students

% Asian Students

View Data

Asian Student Percentage Trends
Year	La Plata County Average	Colorado (CO) Average	National Average
2025	4%	3%	5%
2024	4%	3%	6%
2023	4%	3%	6%
2022	4%	3%	5%
2021	4%	3%	5%
2020	3%	3%	5%
2019	3%	3%	5%
2018	3%	3%	5%
2017	2%	3%	4%
2016	2%	3%	4%
2015	2%	3%	4%

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# Hispanic Students

n/a

2,614 Students

% Hispanic Students

n/a

View Data

Hispanic Student Percentage Trends
Year	La Plata County Average	Colorado (CO) Average	National Average
2017	4%	10%	7%
2016	4%	10%	8%
2015	4%	10%	8%

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# Black Students

1 Student

1,069 Students

% Black Students

View Data

Black Student Percentage Trends
Year	La Plata County Average	Colorado (CO) Average	National Average
2025	3%	4%	8%
2024	3%	4%	8%
2023	3%	4%	8%
2022	3%	3%	8%
2021	3%	3%	8%
2020	2%	4%	8%
2019	2%	4%	8%
2018	2%	4%	8%

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# White Students

24 Students

17,521 Students

% White Students

80%

62%

View Data

White Student Percentage Trends
Year	La Plata County Average	Colorado (CO) Average	National Average
2025	80%	61%	59%
2024	80%	62%	60%
2023	80%	62%	60%
2022	80%	61%	62%
2021	80%	61%	63%
2020	89%	62%	64%
2019	89%	63%	64%
2018	88%	61%	65%
2017	72%	62%	66%
2016	71%	62%	66%
2015	73%	64%	66%

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# Hawaiian Students

n/a

37 Students

% Hawaiian Students

n/a

# Two or more races Students

n/a

% of Two or more races Students

n/a

# Others Students

4 Students

6,104 Students

% of Others Students

13%

21%

View Data

Other Races Student Percentage Trends
Year	La Plata County Average	Colorado (CO) Average	National Average
2025	13%	21%	17%
2024	13%	20%	15%
2023	13%	21%	16%
2022	13%	22%	16%
2021	13%	22%	15%
2020	6%	20%	14%
2019	6%	19%	14%
2018	7%	21%	13%
2017	21%	21%	14%
2016	22%	21%	13%
2015	20%	18%	12%

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All Ethnic Groups

Extracurriculars and Sports:

Average Number of Extracurriculars

3 extracurriculars

9 extracurriculars

Average Number of Sports

10 sports

8 sports

Frequently Asked Questions

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

The private high schools in La Plata County, CO is Colorado Timberline Academy.

How many private high schools are located in La Plataunty?

1 private high schools are located in La Plataunty.

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Quick Facts (2026-27)

Quick Facts (2026-27)

Top Ranked La Plata County Private High Schools (2026-27)

La Plata County Private High Schools (Closed)

Overview

Trends in Total Number of Private High Schools

Trends in the Average Number of Students Per Private High School

Percentage of Students of Color Trends (2015-2025)

Academics and Faculty:

Student-Teacher Ratio Trends (2015-2025)

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

Class Size Trends (2016-2025)

Trends in Average Number of AP Courses Offered

SAT Score Trends (2017-2025)

ACT Score Trends (2016-2025)

Tuition and Acceptance Rate:

Tuition Cost Trends (2015-2025)

Acceptance Rate Trends (2016-2025)

Students by Ethnicity:

Diversity Score Trends

Percentage of Private High 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

Extracurriculars and Sports:

Frequently Asked Questions

Recent Articles

Filter Schools

Quick Links

Trends in the Average Number of Students Per Private High School
Year	La Plata County Average	Colorado (CO) Average	National Average
2025	30	233	253
2024	30	222	245
2023	30	223	247
2022	30	229	257
2021	30	223	249
2020	26	212	235
2019	26	207	242
2018	27	209	238
2017	98	208	246
2016	100	201	241
2015	96	176	220

Best La Plata County Private High Schools (2026-27)

Top Ranked La Plata County Private High Schools (2026-27)

La Plata County Private High Schools (Closed)

Overview

Trends in Total Number of Private High Schools

Trends in the Average Number of Students Per Private High School

Percentage of Students of Color Trends (2015-2025)

Academics and Faculty:

Student-Teacher Ratio Trends (2015-2025)

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

Class Size Trends (2016-2025)

Trends in Average Number of AP Courses Offered

SAT Score Trends (2017-2025)

ACT Score Trends (2016-2025)

Tuition and Acceptance Rate:

Tuition Cost Trends (2015-2025)

Acceptance Rate Trends (2016-2025)

Students by Ethnicity:

Diversity Score Trends

Percentage of Private High 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

Extracurriculars and Sports:

Frequently Asked Questions