Horizons K-8 School (Ranked Top 20% for 2025-26)

4545 Sioux Drive
Boulder, CO 80303

Top 20%

Serving 361 students in grades Kindergarten-8, Horizons K-8 School ranks in the top 20% of all schools in Colorado for overall test scores (math proficiency is top 20%, and reading proficiency is top 20%).

The percentage of students achieving is 53% (which is higher than the Colorado state average of 33%). The percentage of students achieving is 65% (which is higher than the Colorado state average of 45%).

The student-teacher ratio of 14:1 is lower than the Colorado state level of 15:1.

Minority enrollment is 18% of the student body (majority Hispanic), which is lower than the Colorado state average of 50% (majority Hispanic).

Quick Facts (2025-26)

School Type: Alternative school / Charter School
Grades: Kindergarten-8
Enrollment: 361 students
Student-Teacher Ratio: 14:1
Minority Enrollment: 18%
: Top 20% in CO
: 53% (Top 20%)
: 65% (Top 20%)
: ≥50% (Top 10%)
Source: National Center for Education Statistics (NCES), CO Dept. of Education

Top Rankings

Horizons K-8 School ranks among the top 20% of public schools in Colorado for:

School Overview

Horizons K-8 School's student population of 361 students has stayed relatively flat over five school years.

The teacher population of 25 teachers has grown by 19% over five school years.

School Type

Alternative school / Charter School

Grades Offered

Grades Kindergarten-8
(No virtual instruction)

View Data

Distribution of Students By Grade Trends
Grade	Horizons K-8 School
Kind	33
1	40
2	40
3	41
4	43
5	47
6	39
7	34
8	44

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Total Students

361 students

View Data

Total Students Trends Over Years (1993-2023)
Year	Horizons K-8 School
2023	348
2022	348
2021	348
2020	348
2019	348
2018	348
2017	348
2016	348
2015	348
2014	348
2013	340
2012	332
2011	332
2010	325
2009	324
2008	304
2007	320
2006	321
2005	309
2004	309
2003	320
2002	313
2001	306
2000	297
1999	307
1998	284
1997	278
1996	245
1995	186
1994	128
1993	91

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Gender %

Total Classroom Teachers

25 teachers

View Data

Total Classroom Teachers Trends Over Years (1992-2023)
Year	Horizons K-8 School
2023	28
2022	25
2021	26
2020	21
2019	21
2018	22
2017	22
2016	21
2015	21
2014	21
2013	22
2012	20
2011	19
2010	20
2009	21
2008	23
2007	25
2006	21
2005	38
2004	22
2003	22
2002	19
2001	20
2000	26
1999	28
1998	17
1997	19
1996	14
1995	12
1994	6
1992	1

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Year Founded

1991

School Motto

'The Horizons Graduate is a self-directed learner and community contributor.'

School Rankings

Horizons K-8 School ranks within the top 20% of all 1,748 schools in Colorado (based off of combined math and reading proficiency testing data).

The of Horizons K-8 School is 0.32, which is less than the diversity score at state average of 0.62. The school's diversity has stayed relatively flat over five school years.

This School

State Level (CO)

#230 out of 1748 schools
(Top 20%)

View Data

Overall School Rank Trends Over Years (2012-2023)
Year	Horizons K-8 School
2023	#230
2022	#223
2021	#136
2019	#106
2018	#113
2017	#159
2016	#154
2015	#78
2014	#177
2013	#115
2012	#77

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53%

33%

View Data

Math Proficiency Comparison Over Years (2012-2023)
Year	Horizons K-8 School	Colorado	Boulder Valley School District No. Re2
2023	53%	33%	52%
2022	52%	32%	50%
2021	54%	33%	49%
2019	57%	35%	52%
2018	57%	35%	52%
2017	52%	33%	50%
2016	62%	33%	52%
2015	62%	31%	47%
2014	79%	57%	70%
2013	82%	57%	72%
2012	86%	56%	72%

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65%

45%

View Data

Reading and Language Arts Proficiency Comparison Over Years (2011-2022)
Year	Horizons K-8 School	Colorado	Boulder Valley School District No. Re2
2022	65%	45%	63%
2021	67%	47%	67%
2019	77%	47%	63%
2018	72%	44%	52%
2017	67%	42%	58%
2016	57%	40%	58%
2015	67%	40%	59%
2014	90%	69%	81%
2013	92%	70%	82%
2012	95%	70%	82%
2011	98%	89%	94%

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(20-21)

≥50%

29%

Student-Teacher Ratio

14:1

15:1

View Data

Student-Teacher Ratio Comparison Over Years (1996-2023)
Year	Horizons K-8 School	Colorado	Boulder Valley School District No. Re2
2023	12:1	16:1	17:1
2022	14:1	15:1	17:1
2021	13:1	15:1	17:1
2020	17:1	16:1	18:1
2019	17:1	16:1	18:1
2018	16:1	17:1	18:1
2017	16:1	17:1	18:1
2016	17:1	17:1	19:1
2015	17:1	17:1	19:1
2014	16:1	17:1	18:1
2013	16:1	17:1	18:1
2012	17:1	17:1	17:1
2011	17:1	17:1	18:1
2010	17:1	16:1	17:1
2009	15:1	16:1	17:1
2008	13:1	16:1	17:1
2007	13:1	17:1	17:1
2006	15:1	16:1	17:1
2005	8:1	17:1	17:1
2004	14:1	16:1	17:1
2003	15:1	16:1	17:1
2002	16:1	17:1	17:1
2001	15:1	17:1	18:1
2000	11:1	17:1	17:1
1999	11:1	17:1	19:1
1998	16:1	18:1	18:1
1997	15:1	18:1	19:1
1996	17:1	18:1	19:1

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American Indian

Asian

View Data

Asian Student Percentage Comparison Over Years (1993-2023)
Year	Horizons K-8 School	Colorado	Boulder Valley School District No. Re2
2023	3%	3%	7%
2022	3%	3%	6%
2021	2%	3%	6%
2020	2%	3%	6%
2019	2%	3%	6%
2018	2%	3%	6%
2017	2%	3%	6%
2016	4%	3%	6%
2015	5%	3%	7%
2014	5%	3%	6%
2013	6%	3%	7%
2012	6%	3%	6%
2011	7%	3%	6%
2010	6%	4%	7%
2009	6%	4%	7%
2008	8%	3%	7%
2007	7%	3%	7%
2006	6%	3%	6%
2005	5%	3%	6%
2004	5%	3%	6%
2003	6%	3%	6%
2002	5%	3%	5%
2001	5%	3%	5%
2000	4%	3%	5%
1999	3%	3%	5%
1998	4%	3%	5%
1997	4%	3%	4%
1996	5%	3%	5%
1995	2%	3%	4%
1994	2%	2%	4%
1993	4%	2%	4%

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Hispanic

36%

View Data

Hispanic Student Percentage Comparison Over Years (1992-2023)
Year	Horizons K-8 School	Colorado	Boulder Valley School District No. Re2
2023	7%	35%	20%
2022	7%	35%	20%
2021	8%	34%	20%
2020	8%	34%	19%
2019	8%	34%	19%
2018	7%	34%	20%
2017	7%	34%	20%
2016	7%	33%	19%
2015	5%	33%	18%
2014	4%	33%	18%
2013	3%	32%	17%
2012	3%	32%	17%
2011	2%	32%	17%
2010	2%	29%	15%
2009	2%	28%	15%
2008	2%	28%	15%
2007	3%	28%	14%
2006	5%	27%	14%
2005	5%	26%	13%
2004	5%	25%	13%
2003	6%	24%	13%
2002	5%	23%	13%
2001	6%	22%	12%
2000	4%	21%	11%
1999	4%	20%	10%
1998	4%	19%	10%
1997	4%	19%	10%
1996	2%	18%	10%
1994	1%	17%	9%
1993	2%	17%	9%
1992	2%	17%	8%

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Black

View Data

Black Student Percentage Comparison Over Years (1992-2022)
Year	Horizons K-8 School	Colorado	Boulder Valley School District No. Re2
2022	1%	4%	1%
2014	1%	5%	1%
2012	1%	5%	1%
2011	1%	5%	1%
2010	1%	6%	2%
2009	1%	6%	1%
2006	1%	6%	2%
2005	1%	6%	2%
2004	1%	6%	2%
2003	1%	6%	2%
2002	2%	6%	2%
2001	1%	6%	2%
1998	1%	5%	2%
1997	2%	5%	2%
1996	2%	5%	2%
1995	3%	4%	2%
1994	2%	5%	1%
1993	2%	5%	2%
1992	1%	5%	2%

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White

82%

50%

View Data

White Student Percentage Comparison Over Years (1993-2023)
Year	Horizons K-8 School	Colorado	Boulder Valley School District No. Re2
2023	82%	51%	66%
2022	81%	52%	67%
2021	81%	52%	67%
2020	83%	53%	68%
2019	83%	53%	68%
2018	86%	53%	69%
2017	86%	53%	69%
2016	84%	54%	69%
2015	86%	54%	69%
2014	87%	55%	70%
2013	87%	56%	70%
2012	88%	56%	71%
2011	88%	57%	71%
2010	91%	60%	75%
2009	91%	61%	76%
2008	90%	61%	76%
2007	90%	62%	76%
2006	88%	63%	77%
2005	89%	64%	78%
2004	89%	65%	78%
2003	87%	66%	78%
2002	88%	67%	79%
2001	88%	68%	80%
2000	92%	70%	81%
1999	93%	71%	82%
1998	91%	72%	82%
1997	90%	72%	83%
1996	91%	73%	82%
1995	95%	74%	84%
1994	95%	75%	85%
1993	92%	75%	84%

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Hawaiian

n/a

Two or more races

View Data

Two or More Races Student Percentage Comparison Over Years (2013-2023)
Year	Horizons K-8 School	Colorado	Boulder Valley School District No. Re2
2023	8%	5%	6%
2022	8%	5%	6%
2021	9%	5%	6%
2020	7%	4%	6%
2019	7%	4%	6%
2018	5%	4%	5%
2017	5%	4%	5%
2016	5%	4%	5%
2015	4%	4%	5%
2014	3%	3%	5%
2013	4%	3%	5%

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All Ethnic Groups

0.32

0.62

View Data

Diversity Score Comparison Over Years (1993-2023)
Year	Horizons K-8 School	Colorado	Boulder Valley School District No. Re2
2023	0.32	0.62	0.52
2022	0.33	0.61	0.51
2021	0.33	0.61	0.51
2020	0.30	0.60	0.50
2019	0.30	0.60	0.50
2018	0.26	0.60	0.48
2017	0.26	0.60	0.48
2016	0.29	0.60	0.48
2015	0.26	0.60	0.47
2014	0.24	0.59	0.47
2013	0.24	0.59	0.47
2012	0.22	0.59	0.47
2011	0.22	0.58	0.47
2010	0.17	0.55	0.41
2009	0.17	0.55	0.40
2008	0.19	0.55	0.39
2007	0.19	0.54	0.39
2006	0.22	0.53	0.37
2005	0.20	0.52	0.37
2004	0.20	0.52	0.36
2003	0.24	0.51	0.36
2002	0.22	0.50	0.36
2001	0.22	0.49	0.34
2000	0.15	0.47	0.32
1999	0.13	0.46	0.31
1998	0.17	0.46	0.30
1997	0.18	0.45	0.30
1996	0.17	0.45	0.30
1995	0.10	0.43	0.28
1994	0.10	0.41	0.27
1993	0.15	0.41	0.27

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Eligible for

12%

39%

View Data

Free Lunch Eligibility Comparison Over Years (2003-2023)
Year	Horizons K-8 School	Colorado	Boulder Valley School District No. Re2
2023	9%	33%	21%
2022	6%	30%	17%
2021	9%	33%	17%
2020	6%	33%	18%
2019	6%	33%	18%
2018	4%	35%	18%
2017	4%	35%	18%
2016	4%	34%	18%
2015	5%	34%	17%
2014	4%	35%	16%
2013	4%	34%	16%
2012	5%	34%	16%
2011	5%	33%	15%
2010	2%	31%	14%
2009	3%	28%	14%
2008	2%	28%	14%
2007	3%	27%	15%
2006	5%	27%	14%
2005	3%	25%	11%
2004	4%	24%	11%
2003	1%	22%	9%

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Eligible for

View Data

Reduced-Price Lunch Eligibility Comparison Over Years (2001-2023)
Year	Horizons K-8 School	Colorado	Boulder Valley School District No. Re2
2023	2%	7%	4%
2022	2%	6%	4%
2021	1%	7%	3%
2020	1%	8%	3%
2019	1%	8%	3%
2018	3%	8%	3%
2017	3%	8%	3%
2016	3%	7%	4%
2015	1%	7%	2%
2014	1%	7%	2%
2013	1%	7%	3%
2012	1%	7%	3%
2011	2%	7%	3%
2007	1%	7%	3%
2005	2%	6%	2%
2004	2%	6%	2%
2003	1%	7%	3%
2002	2%	7%	3%
2001	2%	7%	3%

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School Statewide Testing

School District Name

Boulder Valley School District No. Re2

Source: National Center for Education Statistics (NCES), CO Dept. of Education

Profile last updated: 02/09/2025

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Frequently Asked Questions

What is Horizons K-8 School's ranking?

Horizons K-8 School is ranked #230 out of 1,748 schools, which ranks it among the top 20% of public schools in Colorado.

What percent of students have achieved state testing proficiency in math and reading?

53% of students have achieved math proficiency (compared to the 33% CO state average), while 65% of students have achieved reading proficiency (compared to the 45% CO state average).

How many students attend Horizons K-8 School?

361 students attend Horizons K-8 School.

What is the racial composition of the student body?

82% of Horizons K-8 School students are White, 7% of students are Two or more races, 6% of students are Hispanic, 3% of students are Asian, 1% of students are American Indian, and 1% of students are Black.

What is the student-teacher ratio of Horizons K-8 School?

Horizons K-8 School has a student ration of 14:1, which is lower than the Colorado state average of 15:1.

What grades does Horizons K-8 School offer ?

Horizons K-8 School offers enrollment in grades Kindergarten-8 (No virtual instruction).

What school district is Horizons K-8 School part of?

Horizons K-8 School is part of Boulder Valley School District No. Re2.

In what neighborhood is Horizons K-8 School located?

Horizons K-8 School is located in the Frasier Meadows neighborhood of Boulder, CO.