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Charles B Sinclair Middle School (Closed 2008)

300 West Chenango Avenue
Englewood, CO 80110

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Charles B Sinclair Middle School serves 312 students in grades 6-8.

The student-teacher ratio of 15:1 was equal to the Colorado state level of 15:1.

Minority enrollment was 33% of the student body (majority Hispanic), which was lower than the Colorado state average of 51% (majority Hispanic).

School Overview

Grades Offered

Grades 6-8

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Distribution of Students By Grade Trends
Grade	Charles B Sinclair Middle School
6	96
7	114
8	102

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Total Students

312 students

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Total Students Trends Over Years (1988-2025)
Year	Charles B Sinclair Middle School
2025	312
2024	312
2023	312
2022	312
2021	312
2020	312
2019	312
2018	312
2017	312
2016	312
2015	312
2007	263
2006	312
2005	348
2004	343
2003	361
2002	363
2001	380
2000	410
1999	427
1998	436
1997	451
1996	487
1995	447
1994	422
1993	375
1992	311
1991	268
1990	270
1989	265
1988	270

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Total Classroom Teachers

21 teachers

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Total Classroom Teachers Trends Over Years (1988-2025)
Year	Charles B Sinclair Middle School
2025	21
2024	21
2023	21
2022	21
2021	21
2020	21
2019	21
2018	21
2017	21
2016	21
2015	21
2007	21
2006	25
2005	24
2004	23
2003	24
2002	26
2001	27
2000	32
1999	29
1998	29
1997	28
1996	30
1995	30
1994	23
1993	22
1992	18
1991	17
1990	15
1989	15
1988	14

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School Rankings

This School

State Level (CO)

Student-Teacher Ratio

15:1

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Student-Teacher Ratio Comparison Over Years (1988-2025)
Year	Charles B Sinclair Middle School	Colorado	Englewood School District No. 1 In The County Of Arapahoe
2025	15:1	15:1
2024	15:1	15:1
2023	15:1	17:1	14:1
2022	15:1	17:1	14:1
2021	15:1	17:1	14:1
2020	15:1	17:1	15:1
2019	15:1	17:1	15:1
2018	15:1	17:1	15:1
2017	15:1	17:1	15:1
2016	15:1	17:1	16:1
2015	15:1	17:1	16:1
2007	13:1	17:1	17:1
2006	12:1	17:1	18:1
2005	15:1	17:1	18:1
2004	15:1	17:1	18:1
2003	15:1	17:1	18:1
2002	14:1	17:1	17:1
2001	14:1	18:1	18:1
2000	13:1	17:1	18:1
1999	15:1	18:1	20:1
1998	15:1	18:1	20:1
1997	16:1	18:1	19:1
1996	17:1	18:1	20:1
1995	15:1	18:1	20:1
1994	18:1	19:1	21:1
1993	17:1	18:1	20:1
1992	17:1	18:1	21:1
1991	16:1	18:1	19:1
1990	18:1	18:1	20:1
1989	17:1	18:1	20:1
1988	19:1	18:1	22:1

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American Indian

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American Indian Student Percentage Comparison Over Years (1990-2025)
Year	Charles B Sinclair Middle School	Colorado	Englewood School District No. 1 In The County Of Arapahoe
2025	1%	1%
2024	1%	1%
2023	1%	1%	2%
2022	1%	1%	1%
2021	1%	1%	1%
2020	1%	1%	2%
2019	1%	1%	2%
2007	2%	1%	3%
2006	1%	1%	3%
2005	1%	1%	3%
2004	2%	1%	3%
2003	2%	1%	2%
2002	3%	1%	2%
2001	3%	1%	2%
2000	3%	1%	2%
1999	2%	1%	2%
1998	1%	1%	2%
1997	2%	1%	2%
1996	2%	1%	2%
1995	1%	1%	2%
1994	2%	1%	2%
1993	1%	1%	2%
1992	3%	1%	2%
1991	1%	1%	2%
1990	3%	1%	1%

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Asian

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Asian Student Percentage Comparison Over Years (1989-2025)
Year	Charles B Sinclair Middle School	Colorado	Englewood School District No. 1 In The County Of Arapahoe
2025	1%	3%
2024	1%	3%
2023	1%	3%	1%
2022	1%	3%	1%
2021	1%	3%	1%
2020	1%	3%	1%
2019	1%	3%	1%
2007	1%	3%	2%
2006	1%	3%	2%
2005	2%	3%	2%
2004	2%	3%	2%
2003	2%	3%	2%
2002	1%	3%	2%
2001	1%	3%	1%
1999	1%	3%	1%
1998	2%	3%	1%
1997	2%	3%	1%
1996	3%	3%	2%
1995	2%	3%	2%
1994	2%	2%	2%
1993	1%	2%	1%
1992	1%	2%	2%
1991	2%	2%	2%
1990	1%	2%	2%
1989	1%	2%	1%

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Hispanic

27%

37%

View Data

Hispanic Student Percentage Comparison Over Years (1990-2025)
Year	Charles B Sinclair Middle School	Colorado	Englewood School District No. 1 In The County Of Arapahoe
2025	27%	37%
2024	27%	36%
2023	27%	35%	38%
2022	27%	35%	38%
2021	27%	34%	38%
2020	27%	34%	38%
2019	27%	34%	38%
2018	28%	34%	40%
2017	28%	34%	40%
2016	28%	33%	39%
2007	25%	28%	30%
2006	28%	27%	29%
2005	28%	26%	28%
2004	23%	25%	25%
2003	21%	24%	23%
2002	18%	23%	21%
2001	17%	22%	19%
2000	17%	21%	17%
1999	14%	20%	17%
1998	10%	19%	15%
1997	12%	19%	14%
1996	13%	18%	14%
1995	12%	18%	13%
1994	11%	17%	13%
1993	10%	17%	12%
1992	12%	17%	12%
1991	7%	16%	11%
1990	8%	16%	11%

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Black

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Black Student Percentage Comparison Over Years (1990-2025)
Year	Charles B Sinclair Middle School	Colorado	Englewood School District No. 1 In The County Of Arapahoe
2025	4%	5%
2024	4%	5%
2023	4%	5%	4%
2022	4%	4%	4%
2021	4%	5%	4%
2020	4%	5%	3%
2019	4%	5%	3%
2018	4%	5%	3%
2017	4%	5%	3%
2016	4%	5%	2%
2007	5%	6%	4%
2006	4%	6%	4%
2005	4%	6%	4%
2004	5%	6%	5%
2003	2%	6%	4%
2002	3%	6%	4%
2001	2%	6%	3%
2000	3%	5%	3%
1999	2%	5%	3%
1998	2%	5%	3%
1997	2%	5%	2%
1996	2%	5%	2%
1995	2%	4%	2%
1994	3%	5%	2%
1993	3%	5%	2%
1992	4%	5%	1%
1991	4%	5%	2%
1990	1%	5%	2%

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White

67%

49%

View Data

White Student Percentage Comparison Over Years (1990-2025)
Year	Charles B Sinclair Middle School	Colorado	Englewood School District No. 1 In The County Of Arapahoe
2025	67%	49%
2024	67%	50%
2023	67%	51%	51%
2022	67%	52%	52%
2021	67%	52%	52%
2020	67%	53%	52%
2019	67%	53%	52%
2018	68%	53%	53%
2017	68%	53%	53%
2016	68%	54%	53%
2007	67%	62%	61%
2006	66%	63%	62%
2005	65%	64%	63%
2004	68%	65%	65%
2003	73%	66%	69%
2002	75%	67%	71%
2001	77%	68%	75%
2000	77%	70%	76%
1999	81%	71%	77%
1998	85%	72%	79%
1997	82%	72%	81%
1996	80%	73%	80%
1995	83%	74%	81%
1994	82%	75%	81%
1993	85%	75%	83%
1992	80%	75%	83%
1991	86%	76%	83%
1990	87%	76%	84%

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Hawaiian

n/a

Two or more races

n/a

All Ethnic Groups

0.48

0.63

View Data

Diversity Score Comparison Over Years (1990-2025)
Year	Charles B Sinclair Middle School	Colorado	Englewood School District No. 1 In The County Of Arapahoe
2025	0.48	0.62
2024	0.48	0.62
2023	0.48	0.62	0.59
2022	0.48	0.61	0.59
2021	0.48	0.61	0.59
2020	0.48	0.60	0.58
2019	0.48	0.60	0.58
2018	0.46	0.60	0.57
2017	0.46	0.60	0.57
2016	0.46	0.60	0.57
2007	0.49	0.54	0.54
2006	0.49	0.53	0.53
2005	0.50	0.52	0.53
2004	0.49	0.52	0.51
2003	0.42	0.51	0.48
2002	0.41	0.50	0.45
2001	0.38	0.49	0.41
2000	0.38	0.47	0.38
1999	0.33	0.46	0.39
1998	0.27	0.46	0.36
1997	0.31	0.45	0.34
1996	0.34	0.45	0.34
1995	0.30	0.43	0.32
1994	0.32	0.41	0.33
1993	0.27	0.41	0.30
1992	0.34	0.40	0.30
1991	0.26	0.40	0.29
1990	0.24	0.40	0.27

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Eligible for

40%

39%

View Data

Free Lunch Eligibility Comparison Over Years (1991-2025)
Year	Charles B Sinclair Middle School	Colorado	Englewood School District No. 1 In The County Of Arapahoe
2025	40%	39%
2024	40%	39%
2023	40%	33%	50%
2022	40%	30%	45%
2021	40%	33%	51%
2020	40%	33%	52%
2019	40%	33%	52%
2018	40%	35%	53%
2017	40%	35%	53%
2016	40%	34%	49%
2015	40%	34%	51%
2007	41%	27%	35%
2006	40%	27%	36%
2005	33%	25%	32%
2004	34%	24%	27%
2003	24%	22%	19%
2002	22%	21%	18%
2001	19%	20%	15%
2000	19%	21%	17%
1999	21%	21%	16%
1998	22%	22%	19%
1997	20%	22%	17%
1996	22%	22%	20%
1995	22%	22%	19%
1994	20%	21%	19%
1993	24%	20%	21%
1992	16%	19%	20%
1991	20%	18%	17%

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Eligible for

View Data

Reduced-Price Lunch Eligibility Comparison Over Years (2000-2025)
Year	Charles B Sinclair Middle School	Colorado	Englewood School District No. 1 In The County Of Arapahoe
2025	6%	5%
2024	6%	6%
2023	6%	7%	8%
2022	6%	6%	8%
2021	6%	7%	8%
2020	6%	8%	10%
2019	6%	8%	10%
2018	6%	8%	10%
2017	6%	8%	10%
2016	6%	7%	7%
2015	6%	7%	8%
2007	4%	7%	6%
2006	6%	6%	6%
2005	8%	6%	7%
2004	8%	6%	7%
2003	11%	7%	7%
2002	10%	7%	9%
2001	9%	7%	7%
2000	13%	7%	9%

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School Statewide Testing

View Education Department Test Scores

School District Name

Englewood School District No. 1 In The County Of Arapahoe

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

Frequently Asked Questions

How many students attend Charles B Sinclair Middle School?

312 students attend Charles B Sinclair Middle School.

What is the racial composition of the student body?

67% of Charles B Sinclair Middle School students are White, 27% of students are Hispanic, 4% of students are Black, 1% of students are American Indian, and 1% of students are Asian.

What is the student-teacher ratio of Charles B Sinclair Middle School?

Charles B Sinclair Middle School has a student ration of 15:1, which is equal to the Colorado state average of 15:1.

What grades does Charles B Sinclair Middle School offer ?

Charles B Sinclair Middle School offers enrollment in grades 6-8

What school district is Charles B Sinclair Middle School part of?

Charles B Sinclair Middle School is part of Englewood School District No. 1 In The County Of Arapahoe.

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