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Sonoma Mountain Elementary School

1900 Rainier Cir.
Petaluma, CA 94954

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Top 20%

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Serving 451 students in grades Kindergarten-6, Sonoma Mountain Elementary School ranks in the top 20% of all schools in California for overall test scores (math proficiency is top 20%, and reading proficiency is top 20%).

The percentage of students achieving is 57% (which is higher than the California state average of 33%). The percentage of students achieving is 66% (which is higher than the California state average of 47%).

The student:teacher ratio of 27:1 is higher than the California state level of 21:1.

Minority enrollment is 30% of the student body (majority Hispanic), which is lower than the California state average of 80% (majority Hispanic).

Quick Stats (2025)

School Type: Charter School
Grades: Kindergarten-6
Enrollment: 451 students
Student:Teacher Ratio: 27:1
Minority Enrollment: 30%
: Top 20% in CA
: 57% (Top 20%)
: 66% (Top 20%)
: 30-39% (Top 50%)
Source: National Center for Education Statistics (NCES), CA Dept. of Education

Top Rankings

Sonoma Mountain Elementary School ranks among the top 20% of public schools in California for:

School Overview

Sonoma Mountain Elementary School's student population of 451 students has stayed relatively flat over five school years.

The teacher population of 17 teachers has stayed relatively flat over five school years.

School Type

Charter School

Grades Offered

Grades Kindergarten-6

View Data

Distribution of Students By Grade Trends
Grade	Sonoma Mountain Elementary School
Kind	93
1	54
2	55
3	56
4	56
5	56
6	81

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Total Students

451 students

View Data

Total Students Trends Over Years (1999-2023)
Year	Sonoma Mountain Elementary School
2023	437
2022	442
2021	462
2020	466
2019	466
2018	443
2017	443
2016	469
2015	441
2014	435
2013	434
2012	436
2011	439
2010	426
2009	427
2008	422
2007	424
2006	426
2005	418
2004	413
2003	420
2002	424
2001	431
2000	429
1999	414

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Gender %

Total Classroom Teachers

17 teachers

View Data

Total Classroom Teachers Trends Over Years (1998-2023)
Year	Sonoma Mountain Elementary School
2023	16
2022	17
2021	17
2020	17
2019	17
2018	16
2017	16
2016	17
2015	15
2014	15
2013	15
2012	16
2010	18
2009	18
2008	19
2007	18
2006	19
2005	18
2004	18
2003	20
2002	20
2001	20
2000	19
1999	19
1998	17

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School Calendar

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School Rankings

Sonoma Mountain Elementary School ranks within the top 20% of all 9,602 schools in California (based off of combined math and reading proficiency testing data).

The of Sonoma Mountain Elementary School is 0.48, 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)

#1414 out of 9602 schools
(Top 20%)

View Data

Overall School Rank Trends Over Years (2010-2022)
Year	Sonoma Mountain Elementary School
2022	#1414
2019	#1704
2018	#1554
2017	#1469
2016	#1970
2015	#1865
2013	#1877
2012	#1870
2011	#1787
2010	#1401

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57%

33%

View Data

Math Proficiency Comparison Over Years (2010-2022)
Year	Sonoma Mountain Elementary School	California	Old Adobe Union School District
2022	57%	33%	39%
2019	65%	40%	49%
2018	64%	39%	46%
2017	61%	38%	42%
2016	52%	37%	36%
2015	49%	34%	31%
2013	73%	59%	58%
2012	71%	59%	58%
2011	71%	58%	58%
2010	73%	56%	58%

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66%

47%

View Data

Reading and Language Arts Proficiency Comparison Over Years (2010-2022)
Year	Sonoma Mountain Elementary School	California	Old Adobe Union School District
2022	66%	47%	44%
2019	62%	51%	52%
2018	64%	50%	46%
2017	66%	48%	48%
2016	60%	48%	50%
2015	58%	44%	45%
2013	70%	57%	61%
2012	75%	58%	64%
2011	73%	56%	61%
2010	74%	54%	60%

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30-39%

29%

Student : Teacher Ratio

27:1

21:1

View Data

Student-Teacher Ratio Comparison Over Years (1998-2023)
Year	Sonoma Mountain Elementary School	California	Old Adobe Union School District
2023	27:1	22:1	24:1
2022	26:1	21:1	24:1
2021	27:1	22:1	24:1
2020	27:1	23:1	23:1
2019	27:1	23:1	23:1
2018	28:1	23:1	25:1
2017	28:1	23:1	25:1
2016	28:1	24:1	25:1
2015	29:1	24:1	28:1
2014	29:1	24:1	26:1
2013	29:1	24:1	26:1
2012	28:1	23:1	27:1
2010	24:1	21:1	21:1
2009	24:1	20:1	22:1
2008	22:1	18:1	19:1
2007	24:1	21:1	21:1
2006	22:1	20:1	21:1
2005	23:1	21:1	21:1
2004	23:1	21:1	21:1
2003	21:1	20:1	21:1
2002	21:1	20:1	21:1
2001	22:1	20:1	20:1
2000	23:1	21:1	21:1
1999	22:1	21:1	20:1
1998	21:1	21:1	19:1

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American Indian

Asian

12%

View Data

Asian Student Percentage Comparison Over Years (1999-2023)
Year	Sonoma Mountain Elementary School	California	Old Adobe Union School District
2023	5%	12%	3%
2022	4%	12%	3%
2021	4%	12%	3%
2020	4%	12%	4%
2019	4%	12%	4%
2018	5%	11%	4%
2017	5%	11%	4%
2016	6%	11%	4%
2015	5%	11%	4%
2014	5%	11%	4%
2013	9%	11%	4%
2012	9%	11%	6%
2011	8%	11%	7%
2010	11%	11%	6%
2009	14%	11%	7%
2008	14%	12%	8%
2007	13%	12%	8%
2006	12%	12%	8%
2005	12%	12%	8%
2004	13%	12%	8%
2003	10%	11%	7%
2002	8%	11%	6%
2001	5%	11%	7%
2000	4%	11%	7%
1999	4%	11%	6%

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Hispanic

16%

56%

View Data

Hispanic Student Percentage Comparison Over Years (1999-2023)
Year	Sonoma Mountain Elementary School	California	Old Adobe Union School District
2023	17%	55%	45%
2022	14%	56%	43%
2021	14%	56%	43%
2020	16%	55%	42%
2019	16%	55%	42%
2018	18%	54%	43%
2017	18%	54%	43%
2016	18%	54%	41%
2015	18%	54%	42%
2014	18%	53%	43%
2013	17%	53%	41%
2012	17%	52%	39%
2011	15%	51%	35%
2010	11%	50%	36%
2009	10%	49%	33%
2008	11%	50%	32%
2007	10%	49%	31%
2006	9%	48%	29%
2005	8%	47%	26%
2004	7%	46%	23%
2003	5%	45%	20%
2002	6%	44%	19%
2001	5%	43%	16%
2000	5%	42%	14%
1999	4%	41%	13%

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Black

n/a

View Data

Black Student Percentage Comparison Over Years (1999-2022)
Year	Sonoma Mountain Elementary School	California	Old Adobe Union School District
2022	1%	5%	2%
2021	1%	5%	1%
2020	1%	5%	1%
2019	1%	5%	1%
2011	1%	7%	1%
2010	1%	7%	2%
2009	1%	7%	2%
2008	1%	8%	2%
2007	1%	8%	2%
2006	6%	8%	3%
2002	1%	8%	3%
2001	1%	8%	3%
1999	1%	9%	2%

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White

70%

20%

View Data

White Student Percentage Comparison Over Years (1999-2023)
Year	Sonoma Mountain Elementary School	California	Old Adobe Union School District
2023	70%	21%	47%
2022	72%	21%	47%
2021	74%	22%	49%
2020	73%	23%	48%
2019	73%	23%	48%
2018	72%	24%	47%
2017	72%	24%	47%
2016	72%	24%	48%
2015	74%	24%	49%
2014	74%	25%	49%
2013	70%	25%	49%
2012	70%	26%	51%
2011	74%	27%	55%
2010	76%	27%	54%
2009	75%	28%	57%
2008	74%	29%	57%
2007	76%	29%	58%
2006	73%	31%	58%
2005	80%	31%	63%
2004	80%	32%	67%
2003	85%	34%	70%
2002	85%	35%	71%
2001	89%	36%	74%
2000	91%	37%	77%
1999	91%	38%	78%

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Hawaiian

n/a

View Data

Native Hawaiian or Pacific Islander Student Percentage Comparison Over Years (2011-2014)
Year	Sonoma Mountain Elementary School	California	Old Adobe Union School District
2014	1%	1%	1%
2013	1%	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 (2011-2023)
Year	Sonoma Mountain Elementary School	California	Old Adobe Union School District
2023	8%	6%	4%
2022	9%	5%	5%
2021	7%	5%	4%
2020	6%	4%	5%
2019	6%	4%	5%
2018	5%	4%	5%
2017	5%	4%	5%
2016	4%	4%	6%
2015	3%	3%	4%
2014	2%	3%	2%
2013	3%	3%	3%
2012	3%	3%	2%
2011	1%	2%	2%

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All Ethnic Groups

0.48

0.63

View Data

Diversity Score Comparison Over Years (1999-2023)
Year	Sonoma Mountain Elementary School	California	Old Adobe Union School District
2023	0.48	0.64	0.58
2022	0.46	0.63	0.59
2021	0.43	0.62	0.58
2020	0.44	0.63	0.59
2019	0.44	0.63	0.59
2018	0.45	0.64	0.60
2017	0.45	0.64	0.60
2016	0.45	0.64	0.61
2015	0.42	0.64	0.59
2014	0.43	0.65	0.58
2013	0.48	0.65	0.59
2012	0.48	0.65	0.59
2011	0.44	0.67	0.58
2010	0.40	0.67	0.58
2009	0.41	0.71	0.57
2008	0.42	0.65	0.57
2007	0.40	0.67	0.57
2006	0.45	0.66	0.58
2005	0.34	0.67	0.53
2004	0.34	0.67	0.50
2003	0.27	0.67	0.46
2002	0.26	0.67	0.46
2001	0.20	0.67	0.42
2000	0.17	0.67	0.38
1999	0.17	0.67	0.37

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Eligible for

11%

54%

View Data

Free Lunch Eligibility Comparison Over Years (1998-2023)
Year	Sonoma Mountain Elementary School	California	Old Adobe Union School District
2023	11%	51%	29%
2022	10%	51%	28%
2021	11%	53%	26%
2020	11%	52%	30%
2019	11%	52%	30%
2018	6%	49%	28%
2017	6%	49%	28%
2016	8%	50%	29%
2015	10%	50%	31%
2014	14%	49%	35%
2013	12%	48%	34%
2012	8%	9%	26%
2011	10%	46%	33%
2010	5%	46%	30%
2009	4%	43%	26%
2007	4%	40%	23%
2006	4%	40%	20%
2005	3%	40%	18%
2004	4%	40%	16%
2003	2%	39%	13%
2002	2%	39%	12%
2001	1%	39%	10%
2000	1%	40%	9%
1999	1%	40%	9%
1998	1%	47%	9%

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Eligible for

View Data

Reduced-Price Lunch Eligibility Comparison Over Years (2001-2023)
Year	Sonoma Mountain Elementary School	California	Old Adobe Union School District
2023	3%	8%	6%
2022	2%	7%	4%
2021	2%	6%	4%
2020	4%	7%	9%
2019	4%	7%	9%
2018	9%	9%	11%
2017	9%	9%	11%
2016	7%	9%	10%
2015	6%	9%	10%
2014	5%	9%	9%
2013	9%	7%	10%
2011	3%	8%	8%
2010	2%	9%	9%
2009	1%	10%	10%
2007	2%	10%	8%
2006	2%	9%	8%
2005	2%	9%	8%
2004	2%	9%	7%
2003	2%	9%	7%
2002	2%	8%	6%
2001	2%	8%	5%

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School Statewide Testing

View Education Department Test Scores

School District Name

Old Adobe Union School District

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

Profile last updated: 02/09/2025

Frequently Asked Questions

What is Sonoma Mountain Elementary School's ranking?

Sonoma Mountain Elementary School is ranked #1414 out of 9,602 schools, which ranks it among the top 20% of public schools in California.

What schools are Sonoma Mountain Elementary School often compared to?

Sonoma Mountain Elementary Schoolis often viewed alongside schools like Meadow Elementary School by visitors of our site.

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

57% of students have achieved math proficiency (compared to the 33% CA state average), while 66% of students have achieved reading proficiency (compared to the 47% CA state average).

How many students attend Sonoma Mountain Elementary School?

451 students attend Sonoma Mountain Elementary School.

What is the racial composition of the student body?

70% of Sonoma Mountain Elementary School students are White, 16% of students are Hispanic, 9% of students are Two or more races, 4% of students are Asian, and 1% of students are American Indian.

What is the student:teacher ratio of Sonoma Mountain Elementary School?

Sonoma Mountain Elementary School has a student ration of 27:1, which is higher than the California state average of 21:1.

What grades does Sonoma Mountain Elementary School offer ?

Sonoma Mountain Elementary School offers enrollment in grades Kindergarten-6

What school district is Sonoma Mountain Elementary School part of?

Sonoma Mountain Elementary School is part of Old Adobe Union School District.

School Reviews

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Quick Stats (2025)

School Type: Charter School
Grades: Kindergarten-6
Enrollment: 451 students
Student:Teacher Ratio: 27:1
Minority Enrollment: 30%
: Top 20%
: 57% (Top 20%)
: 66% (Top 20%)
: 30-39% (Top 50%)
Source: National Center for Education Statistics (NCES), CA Dept. of Education