Cheldelin Middle School (Ranked Top 20% for 2025-26)

987 Conifer Blvd Ne
Corvallis, OR 97330

( shown in map)

Top 20%

Serving 535 students in grades 6-8, Cheldelin Middle School ranks in the top 20% of all schools in Oregon for overall test scores (math proficiency is top 30%, and reading proficiency is top 30%).

The percentage of students achieving is 45% (which is higher than the Oregon state average of 31%). The percentage of students achieving is 58% (which is higher than the Oregon state average of 44%).

The student-teacher ratio of 21:1 is higher than the Oregon state level of 17:1.

Minority enrollment is 32% of the student body (majority Hispanic), which is lower than the Oregon state average of 42% (majority Hispanic).

Quick Facts (2025-26)

Grades: 6-8
Enrollment: 535 students
Student-Teacher Ratio: 21:1
Minority Enrollment: 32%
: Top 20% in OR
: 45% (Top 30%)
: 58% (Top 20%)
: 45-49% (Top 20%)
Source: National Center for Education Statistics (NCES), OR Dept. of Education

Top Rankings

Cheldelin Middle School ranks among the top 20% of public schools in Oregon for:

School Overview

Cheldelin Middle School's student population of 535 students has declined by 11% over five school years.

The teacher population of 26 teachers has stayed relatively flat over five school years.

Grades Offered

Grades 6-8
(No virtual instruction)

View Data

Distribution of Students By Grade Trends
Grade	Cheldelin Middle School
6	157
7	195
8	183

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Total Students

535 students

View Data

Total Students Trends Over Years (1987-2023)
Year	Cheldelin Middle School
2023	570
2022	525
2021	439
2020	604
2019	604
2018	544
2017	544
2016	546
2015	562
2014	546
2013	563
2012	544
2011	597
2010	616
2009	641
2008	591
2007	598
2006	571
2005	641
2004	751
2003	744
2002	656
2001	671
2000	675
1999	700
1998	668
1997	702
1996	648
1995	629
1994	606
1993	601
1992	599
1991	607
1990	565
1989	503
1988	491
1987	497

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Gender %

Total Classroom Teachers

26 teachers

View Data

Total Classroom Teachers Trends Over Years (1987-2023)
Year	Cheldelin Middle School
2023	30
2022	28
2021	26
2020	27
2019	27
2018	26
2017	26
2016	26
2015	27
2014	23
2013	24
2012	23
2011	24
2010	25
2009	28
2008	25
2007	22
2006	20
2005	21
2004	25
2003	27
2002	24
2001	27
2000	29
1999	29
1998	28
1997	29
1996	30
1995	26
1994	25
1993	31
1992	31
1991	30
1990	31
1989	31
1988	31
1987	26

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Year Founded

1967

School Calendar

School Motto

Foster each individual's growth - academically, emotionally, and socially

School Rankings

Cheldelin Middle School ranks within the top 20% of all 1,174 schools in Oregon (based off of combined math and reading proficiency testing data).

The of Cheldelin Middle School is 0.51, which is less than the diversity score at state average of 0.60. The school's diversity has stayed relatively flat over five school years.

This School

State Level (OR)

#205 out of 1174 schools
(Top 20%)

View Data

Overall School Rank Trends Over Years (2011-2023)
Year	Cheldelin Middle School
2023	#205
2022	#214
2019	#157
2018	#143
2017	#74
2016	#95
2015	#89
2014	#129
2013	#96
2012	#116
2011	#218

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45%

31%

View Data

Math Proficiency Comparison Over Years (2011-2023)
Year	Cheldelin Middle School	Oregon	Corvallis SD 509j School District
2023	45%	31%	39%
2022	42%	31%	39%
2019	58%	40%	49%
2018	61%	41%	52%
2017	67%	42%	55%
2016	64%	43%	58%
2015	66%	42%	57%
2014	81%	63%	74%
2013	83%	63%	76%
2012	84%	64%	74%
2011	79%	63%	72%

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58%

44%

View Data

Reading and Language Arts Proficiency Comparison Over Years (2010-2022)
Year	Cheldelin Middle School	Oregon	Corvallis SD 509j School District
2022	58%	44%	51%
2019	68%	54%	62%
2018	71%	56%	52%
2017	76%	55%	65%
2016	75%	57%	68%
2015	75%	56%	70%
2014	87%	72%	84%
2013	87%	72%	85%
2012	87%	74%	85%
2011	88%	81%	88%
2010	87%	78%	84%

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45-49%

30%

Student-Teacher Ratio

21:1

17:1

View Data

Student-Teacher Ratio Comparison Over Years (1987-2023)
Year	Cheldelin Middle School	Oregon	Corvallis SD 509j School District
2023	19:1	17:1	19:1
2022	19:1	17:1	19:1
2021	17:1	17:1	18:1
2020	22:1	19:1	20:1
2019	22:1	19:1	20:1
2018	21:1	20:1	21:1
2017	21:1	19:1	21:1
2016	21:1	20:1	21:1
2015	21:1	21:1	22:1
2014	24:1	21:1	23:1
2013	24:1	21:1	22:1
2012	23:1	21:1	21:1
2011	25:1	20:1	22:1
2010	25:1	20:1	22:1
2009	23:1	19:1	21:1
2008	23:1	19:1	21:1
2007	27:1	19:1	23:1
2006	29:1	19:1	25:1
2005	31:1	21:1	26:1
2004	30:1	21:1	26:1
2003	28:1	21:1	23:1
2002	27:1	19:1	22:1
2001	25:1	20:1	22:1
2000	23:1	20:1	22:1
1999	24:1	21:1	23:1
1998	24:1	20:1	22:1
1997	24:1	20:1	22:1
1996	22:1	20:1	22:1
1995	24:1	20:1	23:1
1994	24:1	20:1	21:1
1993	20:1	19:1	19:1
1992	20:1	22:1	20:1
1991	20:1	19:1	19:1
1990	18:1	19:1	18:1
1989	16:1	18:1	18:1
1988	16:1	19:1	17:1
1987	19:1	19:1	19:1

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American Indian

View Data

American Indian Student Percentage Comparison Over Years (2005-2023)
Year	Cheldelin Middle School	Oregon	Corvallis SD 509j School District
2023	1%	1%	1%
2020	1%	1%	1%
2019	1%	1%	1%
2014	1%	2%	1%
2013	1%	2%	2%
2011	1%	2%	1%
2010	3%	3%	2%
2009	4%	3%	3%
2008	3%	3%	3%
2007	2%	3%	3%
2005	1%	3%	3%

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Asian

View Data

Asian Student Percentage Comparison Over Years (1992-2023)
Year	Cheldelin Middle School	Oregon	Corvallis SD 509j School District
2023	7%	4%	5%
2022	7%	4%	5%
2021	6%	4%	5%
2020	6%	4%	6%
2019	6%	4%	6%
2018	8%	4%	6%
2017	8%	4%	6%
2016	9%	5%	7%
2014	9%	4%	6%
2013	9%	4%	6%
2012	10%	4%	6%
2011	11%	4%	6%
2010	13%	6%	9%
2009	12%	6%	9%
2008	10%	6%	9%
2007	10%	6%	9%
2006	10%	5%	8%
2005	10%	5%	7%
2004	9%	5%	8%
2003	9%	5%	8%
2002	9%	5%	7%
2001	8%	4%	6%
2000	7%	4%	6%
1999	4%	4%	5%
1998	4%	4%	5%
1997	2%	4%	5%
1996	1%	3%	5%
1995	2%	3%	4%
1994	4%	3%	4%
1993	3%	3%	3%
1992	3%	3%	4%

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Hispanic

13%

26%

View Data

Hispanic Student Percentage Comparison Over Years (1990-2023)
Year	Cheldelin Middle School	Oregon	Corvallis SD 509j School District
2023	9%	25%	18%
2022	10%	25%	18%
2021	10%	25%	18%
2020	9%	24%	16%
2019	9%	24%	16%
2018	9%	23%	15%
2017	9%	23%	15%
2016	9%	22%	15%
2014	7%	22%	15%
2013	7%	22%	14%
2012	7%	21%	14%
2011	6%	21%	13%
2010	6%	21%	13%
2009	6%	18%	11%
2008	6%	18%	10%
2007	6%	17%	10%
2006	4%	16%	9%
2005	5%	15%	9%
2004	3%	14%	8%
2003	4%	13%	7%
2002	3%	11%	7%
2001	5%	11%	6%
2000	3%	9%	5%
1999	2%	9%	5%
1998	1%	8%	4%
1997	1%	7%	4%
1996	1%	7%	3%
1993	1%	5%	2%
1992	1%	5%	1%
1991	1%	4%	1%
1990	1%	4%	1%

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Black

View Data

Black Student Percentage Comparison Over Years (1995-2023)
Year	Cheldelin Middle School	Oregon	Corvallis SD 509j School District
2023	1%	3%	2%
2022	1%	2%	1%
2021	2%	2%	1%
2020	1%	2%	1%
2019	1%	2%	1%
2014	1%	2%	1%
2013	1%	2%	1%
2012	1%	2%	1%
2011	2%	3%	2%
2010	1%	3%	2%
2009	3%	4%	3%
2008	3%	4%	3%
2007	2%	4%	2%
2006	2%	3%	2%
2005	2%	4%	2%
2004	2%	3%	2%
2003	1%	3%	2%
2002	1%	3%	2%
2001	1%	3%	2%
2000	1%	3%	2%
1999	2%	3%	2%
1998	1%	3%	1%
1997	1%	2%	1%
1996	1%	3%	1%
1995	1%	3%	1%

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White

68%

58%

View Data

White Student Percentage Comparison Over Years (1992-2023)
Year	Cheldelin Middle School	Oregon	Corvallis SD 509j School District
2023	72%	59%	66%
2022	70%	60%	66%
2021	73%	60%	66%
2020	75%	62%	68%
2019	75%	62%	68%
2018	72%	63%	70%
2017	72%	63%	70%
2016	73%	63%	70%
2014	75%	64%	70%
2013	75%	65%	71%
2012	75%	65%	72%
2011	74%	66%	72%
2010	77%	67%	74%
2009	75%	69%	74%
2008	78%	69%	75%
2007	80%	70%	76%
2006	84%	73%	80%
2005	82%	73%	79%
2004	84%	75%	79%
2003	85%	76%	81%
2002	87%	78%	82%
2001	86%	80%	85%
2000	89%	82%	87%
1999	92%	82%	87%
1998	94%	83%	89%
1997	96%	85%	89%
1996	97%	85%	91%
1995	97%	86%	92%
1994	96%	87%	93%
1993	96%	88%	94%
1992	95%	88%	94%

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Hawaiian

View Data

Native Hawaiian or Pacific Islander Student Percentage Comparison Over Years (2011-2022)
Year	Cheldelin Middle School	Oregon	Corvallis SD 509j School District
2022	1%	1%
2021	1%	1%	1%
2013	1%	1%
2012	1%	1%
2011	1%	1%

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Two or more races

View Data

Two or More Races Student Percentage Comparison Over Years (2012-2023)
Year	Cheldelin Middle School	Oregon	Corvallis SD 509j School District
2023	10%	7%	8%
2022	11%	7%	9%
2021	8%	7%	8%
2020	8%	6%	8%
2019	8%	6%	8%
2018	11%	6%	8%
2017	11%	6%	8%
2016	9%	6%	7%
2014	7%	5%	6%
2013	6%	4%	6%
2012	6%	5%	6%

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All Ethnic Groups

0.51

0.60

View Data

Diversity Score Comparison Over Years (1992-2023)
Year	Cheldelin Middle School	Oregon	Corvallis SD 509j School District
2023	0.46	0.59	0.53
2022	0.49	0.58	0.53
2021	0.45	0.58	0.52
2020	0.42	0.56	0.51
2019	0.42	0.56	0.51
2018	0.46	0.55	0.48
2017	0.46	0.55	0.48
2016	0.45	0.55	0.48
2014	0.42	0.54	0.49
2013	0.42	0.54	0.48
2012	0.42	0.53	0.46
2011	0.45	0.53	0.46
2010	0.39	0.51	0.42
2009	0.44	0.51	0.42
2008	0.38	0.49	0.41
2007	0.35	0.48	0.40
2006	0.29	0.44	0.35
2005	0.31	0.45	0.36
2004	0.29	0.42	0.35
2003	0.27	0.41	0.33
2002	0.24	0.38	0.31
2001	0.25	0.34	0.26
2000	0.20	0.32	0.23
1999	0.15	0.31	0.22
1998	0.12	0.30	0.20
1997	0.08	0.27	0.19
1996	0.06	0.27	0.17
1995	0.06	0.26	0.16
1994	0.08	0.24	0.13
1993	0.08	0.22	0.12
1992	0.10	0.22	0.11

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Eligible for

38%

51%

View Data

Free Lunch Eligibility Comparison Over Years (1991-2023)
Year	Cheldelin Middle School	Oregon	Corvallis SD 509j School District
2023	28%	49%	32%
2022	29%	43%	31%
2021	34%	44%	35%
2020	25%	40%	28%
2019	25%	40%	28%
2018	27%	42%	29%
2017	27%	42%	29%
2016	25%	43%	30%
2015	28%	44%	30%
2014	28%	44%	32%
2013	31%	45%	33%
2012	28%	45%	32%
2011	27%	44%	30%
2010	26%	41%	31%
2009	24%	37%	29%
2008	17%	34%	23%
2007	20%	34%	25%
2006	16%	35%	24%
2005	17%	33%	23%
2004	18%	32%	22%
2003	13%	30%	18%
2002	10%	28%	17%
2001	11%	26%	15%
2000	9%	26%	16%
1999	8%	25%	14%
1998	7%	25%	13%
1997	9%	24%	15%
1996	7%	20%	10%
1995	10%	24%	15%
1994	12%	23%	15%
1993	11%	22%	14%
1992	11%	21%	15%
1991	10%	18%	12%

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Eligible for

View Data

Reduced-Price Lunch Eligibility Comparison Over Years (1999-2023)
Year	Cheldelin Middle School	Oregon	Corvallis SD 509j School District
2023	4%	2%	4%
2022	5%	8%	6%
2021	6%	7%	6%
2020	7%	7%	7%
2019	7%	7%	7%
2018	4%	7%	5%
2017	4%	7%	5%
2016	3%	7%	4%
2015	3%	7%	5%
2014	4%	7%	5%
2013	6%	7%	5%
2012	5%	7%	5%
2011	4%	7%	5%
2010	6%	8%	6%
2009	6%	9%	6%
2008	4%	9%	5%
2007	2%	8%	5%
2006	4%	9%	5%
2005	4%	8%	5%
2004	6%	9%	5%
2003	5%	8%	5%
2002	2%	8%	4%
2001	4%	9%	5%
2000	4%	8%	5%
1999	5%	8%	5%

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School Statewide Testing

School District Name

Corvallis SD 509j School District

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

Profile last updated: 02/09/2025

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Frequently Asked Questions

What is Cheldelin Middle School's ranking?

Cheldelin Middle School is ranked #205 out of 1,174 schools, which ranks it among the top 20% of public schools in Oregon.

What schools are Cheldelin Middle School often compared to?

Cheldelin Middle Schoolis often viewed alongside schools like Linus Pauling Middle School by visitors of our site.

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

45% of students have achieved math proficiency (compared to the 31% OR state average), while 58% of students have achieved reading proficiency (compared to the 44% OR state average).

How many students attend Cheldelin Middle School?

535 students attend Cheldelin Middle School.

What is the racial composition of the student body?

68% of Cheldelin Middle School students are White, 13% of students are Hispanic, 9% of students are Two or more races, 6% of students are Asian, 2% of students are Black, 1% of students are American Indian, and 1% of students are Hawaiian.

What is the student-teacher ratio of Cheldelin Middle School?

Cheldelin Middle School has a student ration of 21:1, which is higher than the Oregon state average of 17:1.

What grades does Cheldelin Middle School offer ?

Cheldelin Middle School offers enrollment in grades 6-8 (No virtual instruction).

What school district is Cheldelin Middle School part of?

Cheldelin Middle School is part of Corvallis SD 509j School District.