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Jefferson County Open Junior High School (Closed 2007)

7655 West 10th Avenue
Denver, CO 80215

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Jefferson County Open Junior High School serves 95 students in grades 7-8.

The student-teacher ratio of 12:1 was lower than the Colorado state level of 15:1.

Minority enrollment was 19% of the student body (majority Hispanic), which was lower than the Colorado state average of 51% (majority Hispanic).

School Overview

Grades Offered

Grades 7-8

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Distribution of Students By Grade Trends
Grade	Jefferson County Open Junior High School
7	46
8	49

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Total Students

95 students

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Showing 1998–2025. Full 34-year historical data available below ↓

Total Students Trends (1992-2025)
Year	Jefferson County Open Junior High School
2025	95
2006	95
2005	98
2004	106
2003	106
2002	107
2001	104
2000	105
1999	107
1998	103
1997	105
1996	104
1995	101
1994	99
1993	100
1992	98

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Total Classroom Teachers

8 teachers

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Showing 1996–2025. Full 33-year historical data available below ↓

Total Classroom Teachers Trends (1993-2025)
Year	Jefferson County Open Junior High School
2025	8
2006	8
2005	10
2004	6
2003	6
2002	6
2001	4
1998	4
1997	5
1996	4
1995	3
1994	3
1993	3

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School Rankings

This School

State Level (CO)

Student-Teacher Ratio

12:1

15:1

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Showing 1996–2025. Full 33-year historical data available below ↓

Student-Teacher Ratio Comparison (1993-2025)
Year	Jefferson County Open Junior High School	Colorado	Jefferson County School District No. R-1
2025	12:1	15:1
2006	12:1	16:1	18:1
2005	10:1	17:1	19:1
2004	18:1	16:1	19:1
2003	18:1	16:1	18:1
2002	18:1	17:1	19:1
2001	26:1	17:1	20:1
1998	26:1	18:1	21:1
1997	21:1	18:1	21:1
1996	26:1	18:1	21:1
1995	34:1	18:1	21:1
1994	33:1	19:1	22:1
1993	33:1	19:1	21:1

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American Indian

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Showing 1998–2025. Full 34-year historical data available below ↓

American Indian Student Percentage Comparison (1992-2025)
Year	Jefferson County Open Junior High School	Colorado	Jefferson County School District No. R-1
2025	5%	1%
2006	5%	1%	1%
2005	2%	1%	1%
2004	3%	1%	1%
2003	4%	1%	1%
2002	2%	1%	1%
2001	1%	1%	2%
2000	1%	1%	1%
1999	1%	1%	1%
1998	5%	1%	1%
1997	3%	1%	1%
1996	1%	1%	1%
1995	2%	1%	1%
1994	3%	1%	1%
1993	2%	1%	1%
1992	2%	1%	1%

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Asian

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Showing 1998–2025. Full 34-year historical data available below ↓

Asian Student Percentage Comparison (1992-2025)
Year	Jefferson County Open Junior High School	Colorado	Jefferson County School District No. R-1
2025	2%	3%
2006	2%	3%	4%
2005	3%	3%	4%
2004	2%	3%	4%
2003	1%	3%	4%
2002	2%	3%	3%
2001	1%	3%	3%
2000	1%	3%	3%
1999	1%	3%	3%
1998	2%	3%	3%
1997	2%	3%	3%
1996	1%	3%	3%
1992	1%	2%	3%

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Hispanic

10%

37%

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Showing 1998–2025. Full 34-year historical data available below ↓

Hispanic Student Percentage Comparison (1992-2025)
Year	Jefferson County Open Junior High School	Colorado	Jefferson County School District No. R-1
2025	10%	37%
2006	10%	27%	17%
2005	12%	26%	16%
2004	5%	25%	15%
2003	8%	24%	14%
2002	6%	23%	13%
2001	5%	22%	12%
2000	7%	21%	11%
1999	9%	20%	10%
1998	8%	19%	10%
1997	7%	19%	9%
1996	5%	18%	9%
1995	6%	18%	8%
1994	3%	17%	8%
1993	3%	17%	8%
1992	3%	17%	8%

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Black

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Showing 1998–2025. Full 34-year historical data available below ↓

Black Student Percentage Comparison (1992-2025)
Year	Jefferson County Open Junior High School	Colorado	Jefferson County School District No. R-1
2025	2%	5%
2006	2%	6%	2%
2005	1%	6%	2%
2004	3%	6%	2%
2003	1%	6%	2%
2002	1%	6%	2%
2001	3%	6%	1%
2000	3%	6%	1%
1999	1%	6%	1%
1998	1%	6%	1%
1995	1%	5%	1%
1992	1%	5%	1%

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White

81%

49%

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Showing 1998–2025. Full 34-year historical data available below ↓

White Student Percentage Comparison (1992-2025)
Year	Jefferson County Open Junior High School	Colorado	Jefferson County School District No. R-1
2025	81%	49%
2006	81%	63%	76%
2005	82%	64%	77%
2004	87%	65%	78%
2003	86%	66%	79%
2002	89%	67%	81%
2001	90%	68%	82%
2000	88%	69%	84%
1999	88%	70%	85%
1998	84%	71%	85%
1997	88%	72%	86%
1996	93%	73%	86%
1995	91%	74%	87%
1994	94%	74%	87%
1993	95%	75%	87%
1992	93%	75%	87%

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All Ethnic Groups

19%

51%

0.33

0.63

View Data

Showing 1998–2025. Full 34-year historical data available below ↓

Diversity Score Comparison (1992-2025)
Year	Jefferson County Open Junior High School	Colorado	Jefferson County School District No. R-1
2025	0.33	0.62
2006	0.33	0.53	0.39
2005	0.31	0.52	0.38
2004	0.24	0.52	0.37
2003	0.25	0.51	0.35
2002	0.21	0.50	0.33
2001	0.19	0.49	0.31
2000	0.22	0.48	0.29
1999	0.22	0.47	0.27
1998	0.29	0.46	0.26
1997	0.22	0.45	0.25
1996	0.13	0.44	0.24
1995	0.17	0.42	0.23
1994	0.12	0.42	0.22
1993	0.10	0.41	0.22
1992	0.13	0.41	0.22

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Eligible for

32%

39%

View Data

Showing 1997–2025. Full 33-year historical data available below ↓

Free Lunch Eligibility Comparison (1993-2025)
Year	Jefferson County Open Junior High School	Colorado	Jefferson County School District No. R-1
2025	32%	39%
2006	32%	27%	19%
2005	24%	25%	15%
2004	17%	24%	13%
2003	16%	22%	11%
2002	9%	21%	10%
2001	11%	20%	9%
2000	17%	21%	10%
1998	19%	22%	10%
1997	13%	22%	10%
1996	10%	22%	10%
1995	13%	22%	10%
1994	11%	21%	10%
1993	11%	20%	9%

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Eligible for

View Data

Reduced-Price Lunch Eligibility Comparison (2000-2025)
Year	Jefferson County Open Junior High School	Colorado	Jefferson County School District No. R-1
2025	6%	5%
2006	6%	6%	5%
2005	8%	6%	5%
2004	15%	6%	5%
2003	8%	7%	5%
2002	12%	7%	5%
2001	11%	7%	5%
2000	8%	7%	5%

Download Table: Download as CSV | Download as XML | Download as JSON

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Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

School Statewide Testing

View Education Department Test Scores

School District Name

Jefferson County School District No. R-1

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

Frequently Asked Questions

How many students attend Jefferson County Open Junior High School?

95 students attend Jefferson County Open Junior High School.

What is the racial composition of the student body?

81% of Jefferson County Open Junior High School students are White, 10% of students are Hispanic, 5% of students are American Indian, 2% of students are Asian, and 2% of students are Black.

What is the student-teacher ratio of Jefferson County Open Junior High School?

Jefferson County Open Junior High School has a student ration of 12:1, which is lower than the Colorado state average of 15:1.

What grades does Jefferson County Open Junior High School offer ?

Jefferson County Open Junior High School offers enrollment in grades 7-8

What school district is Jefferson County Open Junior High School part of?

Jefferson County Open Junior High School is part of Jefferson County School District No. R-1.

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