Los Osos Middle School (Ranked Top 30% for 2026)

1555 El Moro St.
Los Osos, CA 93402

( shown in map)

Top 30%

Serving 486 students in grades 6-8, Los Osos Middle School ranks in the top 30% of all schools in California 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 California state average of 34%). The percentage of students achieving is 64% (which is higher than the California state average of 47%).

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

Minority enrollment is 40% of the student body (majority Hispanic), which is lower than the California state average of 80% (majority Hispanic).

Quick Facts (2026)

Grades: 6-8
Enrollment: 486 students
Student-Teacher Ratio: 17:1
Minority Enrollment: 40%
: Top 30% in CA
: 45% (Top 30%)
: 64% (Top 20%)
: 50-54% (Top 20%)
Source: National Center for Education Statistics (NCES), CA Dept. of Education

<�鶹��ý class="so-dt-title" id="top-rankings">Top Rankings

Los Osos Middle School ranks among the top 20% of public schools in California for:

Category

Attribute

Reading/Language Arts Proficiency

Highest reading/language arts proficiency (Top 20%)

Science Proficiency

Highest science proficiency (Top 20%)

<�鶹��ý class='so-dt-title' id="overview">School Overview

Los Osos Middle School's student population of 486 students has declined by 10% over five school years.

The teacher population of 28 teachers has declined by 6% over five school years.

Grades Offered

Grades 6-8

View Data

Distribution of Students By Grade Trends
Grade	Los Osos Middle School
6	130
7	191
8	164
9	1

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Total Students

486 students

View Data

Total Students Trends Over Years (1987-2023)
Year	Los Osos Middle School
2023	539
2022	520
2021	541
2020	563
2019	563
2018	613
2017	613
2016	610
2015	583
2014	560
2013	383
2012	369
2011	382
2010	374
2009	373
2008	383
2007	406
2006	488
2005	542
2004	571
2003	611
2002	524
2001	502
2000	497
1999	546
1998	565
1997	569
1996	531
1995	523
1994	553
1993	517
1992	493
1991	490
1990	456
1989	437
1988	462
1987	462

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Gender %

Total Classroom Teachers

28 teachers

View Data

Total Classroom Teachers Trends Over Years (1990-2023)
Year	Los Osos Middle School
2023	27
2022	27
2021	30
2020	29
2019	29
2018	29
2017	29
2016	30
2015	30
2014	25
2013	19
2012	20
2010	18
2009	17
2008	17
2007	18
2006	23
2005	24
2004	26
2003	26
2002	23
2001	24
2000	26
1999	23
1998	23
1997	26
1996	26
1995	25
1994	27
1993	25
1992	28
1991	28
1990	23

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School Calendar

Last Day of School

Fri. Jun 5, 2026

<�鶹��ý class='so-dt-title' id="school-rankings">School Rankings

Los Osos Middle School ranks within the top 30% of all 9,523 schools in California (based off of combined math and reading proficiency testing data).

The of Los Osos Middle School is 0.57, which is less than the diversity score at state average of 0.63. The school's diversity has stayed relatively flat over five school years.

This School

State Level (CA)

#2124 out of 9523 schools
(Top 30%)

View Data

Overall School Rank Trends Over Years (2011-2023)
Year	Los Osos Middle School
2023	#2124
2022	#2059
2021	#1329
2019	#1747
2018	#1598
2017	#1475
2016	#1409
2015	#2643
2013	#3558
2012	#3671
2011	#4241

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45%

34%

View Data

Math Proficiency Comparison Over Years (2011-2023)
Year	Los Osos Middle School	California	San Luis Coastal Unified School District
2023	45%	34%	57%
2022	46%	33%	55%
2021	44%	34%	50%
2019	55%	40%	64%
2018	56%	39%	61%
2017	54%	38%	61%
2016	55%	37%	59%
2015	39%	34%	50%
2013	55%	59%	69%
2012	56%	59%	70%
2011	54%	58%	66%

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64%

47%

View Data

Reading and Language Arts Proficiency Comparison Over Years (2010-2022)
Year	Los Osos Middle School	California	San Luis Coastal Unified School District
2022	64%	47%	64%
2021	58%	49%	58%
2019	69%	51%	70%
2018	69%	50%	61%
2017	70%	48%	67%
2016	70%	48%	65%
2015	53%	44%	60%
2013	67%	57%	70%
2012	68%	58%	72%
2011	60%	56%	70%
2010	64%	54%	69%

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50-54%

29%

View Data

Science Proficiency Comparison Over Years (2021-2022)
Year	Los Osos Middle School	California	San Luis Coastal Unified School District
2022	52%	29%	43%
2021	42%	28%	44%

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Student-Teacher Ratio

17:1

21:1

View Data

Student-Teacher Ratio Comparison Over Years (1990-2023)
Year	Los Osos Middle School	California	San Luis Coastal Unified School District
2023	20:1	22:1	21:1
2022	19:1	21:1	21:1
2021	18:1	22:1	20:1
2020	19:1	23:1	23:1
2019	19:1	23:1	23:1
2018	21:1	23:1	22:1
2017	21:1	23:1	22:1
2016	20:1	24:1	22:1
2015	19:1	24:1	22:1
2014	23:1	24:1	23:1
2013	20:1	24:1	21:1
2012	19:1	23:1	19:1
2010	20:1	21:1	19:1
2009	22:1	20:1	20:1
2008	22:1	18:1	21:1
2007	23:1	21:1	19:1
2006	21:1	20:1	20:1
2005	23:1	21:1	21:1
2004	22:1	21:1	21:1
2003	24:1	20:1	21:1
2002	23:1	20:1	21:1
2001	21:1	20:1	20:1
2000	19:1	21:1	20:1
1999	24:1	21:1	20:1
1998	25:1	21:1	22:1
1997	22:1	23:1	21:1
1996	21:1	25:1	22:1
1995	21:1	25:1	23:1
1994	21:1	25:1	21:1
1993	21:1	25:1	22:1
1992	18:1	24:1	20:1
1991	18:1	24:1	20:1
1990	20:1	24:1	20:1

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American Indian

n/a

View Data

American Indian Student Percentage Comparison Over Years (2002-2023)
Year	Los Osos Middle School	California	San Luis Coastal Unified School District
2023	1%	1%
2022	1%	1%
2014	1%	1%
2012	1%	1%
2011	1%	1%
2007	1%	2%
2006	2%	1%	1%
2005	2%	2%	1%
2004	2%	2%	2%
2003	1%	2%	1%
2002	1%	2%	1%

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Asian

12%

View Data

Asian Student Percentage Comparison Over Years (1991-2023)
Year	Los Osos Middle School	California	San Luis Coastal Unified School District
2023	5%	12%	5%
2022	6%	12%	5%
2021	6%	12%	5%
2020	5%	12%	6%
2019	5%	12%	6%
2018	6%	11%	5%
2017	6%	11%	5%
2016	7%	11%	6%
2015	8%	11%	6%
2014	8%	11%	6%
2013	8%	11%	6%
2012	7%	11%	6%
2011	6%	11%	6%
2010	5%	11%	6%
2009	7%	11%	7%
2008	7%	12%	7%
2007	6%	12%	6%
2006	8%	12%	6%
2005	7%	12%	6%
2004	7%	12%	5%
2003	5%	11%	5%
2002	4%	11%	5%
2001	6%	11%	4%
2000	4%	11%	5%
1999	4%	11%	4%
1998	5%	11%	4%
1997	5%	11%	5%
1996	6%	11%	5%
1995	6%	11%	4%
1994	4%	11%	4%
1993	5%	11%	5%
1992	5%	11%	4%
1991	3%	11%	4%

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Hispanic

26%

56%

View Data

Hispanic Student Percentage Comparison Over Years (1991-2023)
Year	Los Osos Middle School	California	San Luis Coastal Unified School District
2023	26%	55%	31%
2022	31%	56%	30%
2021	27%	56%	30%
2020	27%	55%	29%
2019	27%	55%	29%
2018	26%	54%	29%
2017	26%	54%	29%
2016	25%	54%	28%
2015	23%	54%	28%
2014	21%	53%	28%
2013	24%	53%	26%
2012	24%	52%	26%
2011	28%	51%	25%
2010	30%	50%	25%
2009	22%	49%	21%
2008	21%	50%	20%
2007	22%	49%	20%
2006	21%	48%	20%
2005	17%	47%	19%
2004	18%	46%	18%
2003	15%	45%	17%
2002	12%	44%	16%
2001	12%	43%	15%
2000	12%	42%	14%
1999	14%	41%	14%
1998	12%	40%	13%
1997	11%	40%	12%
1996	10%	39%	11%
1995	10%	38%	11%
1994	7%	37%	11%
1993	3%	36%	10%
1992	9%	35%	10%
1991	7%	34%	8%

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Black

n/a

View Data

Black Student Percentage Comparison Over Years (1989-2020)
Year	Los Osos Middle School	California	San Luis Coastal Unified School District
2020	1%	5%	1%
2019	1%	5%	1%
2015	1%	6%	1%
2014	1%	6%	1%
2013	1%	6%	1%
2012	1%	6%	1%
2011	1%	7%	2%
2009	1%	7%	2%
2008	1%	8%	2%
2007	1%	8%	2%
2006	2%	8%	2%
2005	2%	8%	3%
2004	1%	8%	2%
2003	1%	8%	2%
2002	2%	8%	2%
2001	2%	8%	2%
2000	1%	9%	2%
1999	1%	9%	2%
1998	1%	9%	2%
1997	1%	9%	2%
1996	1%	9%	2%
1995	1%	9%	2%
1994	2%	9%	2%
1993	2%	9%	2%
1992	1%	9%	3%
1991	1%	9%	2%
1990	2%	9%	2%
1989	1%	9%	2%

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White

60%

20%

View Data

White Student Percentage Comparison Over Years (1991-2023)
Year	Los Osos Middle School	California	San Luis Coastal Unified School District
2023	61%	21%	56%
2022	56%	21%	58%
2021	60%	22%	58%
2020	62%	23%	59%
2019	62%	23%	59%
2018	64%	24%	60%
2017	64%	24%	60%
2016	64%	24%	61%
2015	65%	24%	61%
2014	65%	25%	60%
2013	63%	25%	62%
2012	64%	26%	63%
2011	61%	27%	64%
2010	59%	27%	64%
2009	68%	28%	69%
2008	71%	29%	71%
2007	70%	29%	72%
2006	67%	31%	71%
2005	72%	31%	71%
2004	72%	32%	73%
2003	78%	34%	75%
2002	81%	35%	76%
2001	80%	36%	78%
2000	82%	37%	79%
1999	80%	38%	80%
1998	82%	39%	81%
1997	83%	39%	81%
1996	83%	40%	82%
1995	83%	41%	83%
1994	87%	42%	83%
1993	90%	43%	83%
1992	85%	44%	83%
1991	89%	45%	86%

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Hawaiian

n/a

Two or more races

View Data

Two or More Races Student Percentage Comparison Over Years (2009-2023)
Year	Los Osos Middle School	California	San Luis Coastal Unified School District
2023	7%	6%	7%
2022	6%	5%	6%
2021	7%	5%	6%
2020	5%	4%	5%
2019	5%	4%	5%
2018	4%	4%	5%
2017	4%	4%	5%
2016	4%	4%	4%
2015	3%	3%	4%
2014	4%	3%	5%
2013	4%	3%	4%
2012	2%	3%	4%
2011	3%	2%	3%
2010	6%	3%	3%
2009	1%	3%	1%

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All Ethnic Groups

0.57

0.63

View Data

Diversity Score Comparison Over Years (1991-2023)
Year	Los Osos Middle School	California	San Luis Coastal Unified School District
2023	0.56	0.64	0.59
2022	0.59	0.63	0.58
2021	0.56	0.62	0.57
2020	0.54	0.63	0.57
2019	0.54	0.63	0.57
2018	0.52	0.64	0.55
2017	0.52	0.64	0.55
2016	0.53	0.64	0.55
2015	0.52	0.64	0.55
2014	0.53	0.65	0.56
2013	0.54	0.65	0.55
2012	0.53	0.65	0.54
2011	0.55	0.67	0.53
2010	0.56	0.67	0.53
2009	0.49	0.71	0.48
2008	0.45	0.65	0.45
2007	0.46	0.67	0.45
2006	0.51	0.66	0.46
2005	0.46	0.67	0.45
2004	0.45	0.67	0.43
2003	0.37	0.67	0.41
2002	0.33	0.67	0.39
2001	0.35	0.67	0.36
2000	0.31	0.67	0.36
1999	0.34	0.67	0.35
1998	0.31	0.67	0.33
1997	0.30	0.67	0.32
1996	0.30	0.67	0.31
1995	0.30	0.67	0.30
1994	0.24	0.67	0.30
1993	0.19	0.67	0.30
1992	0.27	0.67	0.30
1991	0.20	0.67	0.26

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Eligible for

41%

54%

View Data

Free Lunch Eligibility Comparison Over Years (1993-2023)
Year	Los Osos Middle School	California	San Luis Coastal Unified School District
2023	38%	51%	32%
2022	42%	51%	32%
2021	38%	53%	31%
2020	36%	52%	31%
2019	36%	52%	31%
2018	30%	49%	27%
2017	30%	49%	27%
2016	34%	50%	29%
2015	32%	50%	30%
2014	31%	49%	28%
2013	34%	48%	30%
2012	47%	9%	35%
2011	29%	46%	26%
2010	29%	46%	24%
2009	26%	43%	20%
2008	22%	41%	19%
2007	23%	40%	19%
2006	24%	40%	19%
2005	20%	40%	19%
2004	19%	40%	17%
2003	19%	39%	17%
2002	18%	39%	17%
2001	18%	39%	15%
2000	19%	40%	16%
1999	19%	40%	17%
1998	28%	47%	23%
1997	27%	47%	23%
1996	25%	46%	22%
1995	25%	45%	22%
1994	24%	43%	22%
1993	22%	41%	20%

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Eligible for

14%

View Data

Reduced-Price Lunch Eligibility Comparison Over Years (2002-2023)
Year	Los Osos Middle School	California	San Luis Coastal Unified School District
2023	3%	8%	2%
2022	15%	7%	11%
2021	4%	6%	3%
2020	6%	7%	4%
2019	6%	7%	4%
2018	10%	9%	5%
2017	10%	9%	5%
2016	10%	9%	6%
2015	11%	9%	7%
2014	15%	9%	8%
2013	15%	7%	7%
2011	14%	8%	8%
2010	16%	9%	9%
2009	11%	10%	9%
2008	16%	10%	9%
2007	12%	10%	9%
2006	10%	9%	8%
2005	11%	9%	8%
2004	11%	9%	8%
2003	11%	9%	8%
2002	13%	8%	8%

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School Statewide Testing

School District Name

San Luis Coastal Unified School District

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

<�鶹��ý class='so-dt-title' id="school-notes">School Notes

School Mascot: Lions

Profile last updated: 02/09/2025

REQUEST FREE INFORMATION

<�鶹��ý class='so-dt-title' id='faq'>Frequently Asked Questions

What is Los Osos Middle School's ranking?

Los Osos Middle School is ranked #2124 out of 9,523 schools, which ranks it among the top 30% of public schools in California.

What schools are Los Osos Middle School often compared to?

Los Osos Middle Schoolis often viewed alongside schools like Laguna 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 34% CA state average), while 64% of students have achieved reading proficiency (compared to the 47% CA state average).

How many students attend Los Osos Middle School?

486 students attend Los Osos Middle School.

What is the racial composition of the student body?

60% of Los Osos Middle School students are White, 26% of students are Hispanic, 9% of students are Two or more races, and 5% of students are Asian.

What is the student-teacher ratio of Los Osos Middle School?

Los Osos Middle School has a student ration of 17:1, which is lower than the California state average of 21:1.

What grades does Los Osos Middle School offer ?

Los Osos Middle School offers enrollment in grades 6-8

What school district is Los Osos Middle School part of?

Los Osos Middle School is part of San Luis Coastal Unified School District.

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