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Sonoma Mountain Elementary

Public, Charter Grades K-6

451^st

SchoolDigger Rank ?

of 5,857 California Elementary Schools

Better than 92% of California elementary schools

Summary

Sonoma Mountain Elementary is a public charter elementary school in Petaluma, California, serving 451 students in grades K-6. The school is part of the Old Adobe Union District, which is ranked 627 out of 1,565 districts in the state.

Sonoma Mountain Elementary consistently outperforms both the district and the state of California in standardized test scores across all grade levels and subject areas. In the 2024-2025 school year, the school ranked in the top 8% of California elementary schools, with particularly strong performance in 3rd grade English Language Arts and Mathematics. The school's female, male, Hispanic, and White student populations all perform well, with low-income students also ranking in the top 11% of California elementary schools. However, the school's chronic absenteeism rate, while decreasing, is still higher than the district and state averages, an area the school should continue to address.

Compared to nearby schools, Sonoma Mountain Elementary outperforms the other Old Adobe Union District schools, but lags behind the high-performing Waugh Elementary District schools. The school's relatively low percentage of free and reduced-price lunch recipients suggests it may not be as socioeconomically diverse as some of the other local schools, an area the school could consider addressing to ensure equitable access and support for all learners.

422

Students ?

24.8

Student/teacher ratio ?

$17,373

Per pupil spending ?

15.4%

Free/discounted lunch ?

1900 Rainier Cir.
Petaluma, CA 94954-2543

(707) 765-4305

District: Old Adobe Union

Students who attend Sonoma Mountain Elementary usually attend:

Middle:	Kenilworth Junior High
High:	Casa Grande High

Racial breakdown:

White:

69.7%

Hispanic:

14.2%

Two or more races:

10.0%

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Compare Sonoma Mountain Elementary to nearby elementary schools!

At a glance

▲ Ranking trend: Improving — 71st percentile in 2013 → 92nd in 2025

Strengths

✓Test scores above the California average (74% vs 41% meeting standards)

✓Ranks in the top 8% of California elementary schools

✓Ranking is trending up — up 21 percentile points since 2013

Worth a look

!Large classes — about 25 students per teacher

Students meeting standards (2024-2025) ?

This school74%

District avg47%

California avg41%

451^st of 5,857

California public elementary schools ?

Top 8%▲ up 17 pts since 2015

From top 25% (2015) to top 8% (2025)

See the entire ranking list of California Elementary Schools →

★★★★★

SchoolDigger rating ?

1^st of 5Elementary Schools in the Old Adobe Union

618^th of 1,543Old Adobe Union among California districts

Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	California percentile	Rating
2025	93.3	451 of 5857	92.3%	★★★★★
2024	85.9	912 of 5869	84.5%	★★★★☆
2023	83.6	1012 of 5859	82.7%	★★★★☆
2022	81.7	1108 of 5883	81.2%	★★★★☆
2019	76.9	1304 of 5789	77.5%	★★★★☆
2018	82.5	1006 of 5662	82.2%	★★★★☆
2017	83.9	964 of 5692	83.1%	★★★★☆
2016	73.3	1385 of 5614	75.3%	★★★★☆
2015	72.7	1392 of 5611	75.2%	★★★★☆
2013	69.6	1590 of 5530	71.2%	★★★★☆
2012	70.2	1522 of 5390	71.8%	★★★★☆
2011	71.5	1424 of 5377	73.5%	★★★★☆
2010	77.6	1103 of 5314	79.2%	★★★★☆
2009	76.4	1154 of 5193	77.8%	★★★★☆
2008	77.4	1088 of 5113	78.7%	★★★★☆
2007	81.4	919 of 5113	82.0%	★★★★☆
2006	80.1	964 of 4818	80.0%	★★★★☆
2005	76.0	1095 of 4822	77.3%	★★★★☆
2004	79.7	902 of 4809	81.2%	★★★★☆

Female

Year	Avg score	Statewide rank	California percentile	Rating
2025	92.9	389 of 5597	93.0%	★★★★★
2024	87.1	765 of 5612	86.4%	★★★★☆
2023	83.4	962 of 5609	82.8%	★★★★☆
2022	87.2	770 of 5635	86.3%	★★★★☆
2019	86.1	762 of 5492	86.1%	★★★★☆
2018	82.4	936 of 5413	82.7%	★★★★☆

Hispanic

Year	Avg score	Statewide rank	California percentile	Rating
2024	73.0	1049 of 5107	79.5%	★★★★☆
2023	77.5	848 of 5087	83.3%	★★★★☆
2022	74.2	972 of 5084	80.9%	★★★★☆

Low Socio Economic Status

Year	Avg score	Statewide rank	California percentile	Rating
2024	85.6	603 of 5517	89.1%	★★★★☆
2022	72.8	1042 of 5264	80.2%	★★★★☆

Male

Year	Avg score	Statewide rank	California percentile	Rating
2025	90.7	535 of 5628	90.5%	★★★★★
2024	82.1	998 of 5643	82.3%	★★★★☆
2023	81.6	1029 of 5638	81.7%	★★★★☆
2022	70.8	1484 of 5663	73.8%	★★★★☆
2019	64.2	1764 of 5510	68.0%	★★★☆☆
2018	79.5	1083 of 5431	80.1%	★★★★☆

White

Year	Avg score	Statewide rank	California percentile	Rating
2025	81.5	361 of 2598	86.1%	★★★★☆
2024	70.9	783 of 2651	70.5%	★★★★☆
2023	65.1	960 of 2661	63.9%	★★★☆☆
2022	63.1	1037 of 2726	62.0%	★★★☆☆
2019	55.7	1349 of 2834	52.4%	★★★☆☆
2018	63.5	1059 of 2737	61.3%	★★★☆☆

How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)

Female (2025)93rd percentile~ school

Male (2025)90th percentile~ school

Low Socio Economic Status (2024)89th percentile+5 vs school

White (2025)86th percentile-6 vs school

Hispanic (2024)79th percentile-5 vs school

By subject vs California (2024-2025) ?

English Language Arts/Literacy79%+30 vs state

Mathematics72%+35 vs state

Science61%+28 vs state

★

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Schools Near Sonoma Mountain Elementary

Choose columns to see: Summary School Students/Teachers Ranking Test Scores Immunizations Finance All

School													Students/Teachers											Ranking (2025)				Ranking (2024)				CAST Science (2025)			Smarter Balanced Assessments English Language Arts/Literacy (2025)							Smarter Balanced Assessments Mathematics (2025)							% Completely Immunized (2022)	% Polio (2022)	% Hepatitis B (2022)	% Varicella (2022)	% DTP (2022)	% MMR (2022)	Per Pupil Expenditures (2024)
Name	Type	Grades	Address	City	Zip	County	District	Is Charter	Is Magnet	Is Virtual	Is Title I	Phone	Enrollment	Full-time Teachers	Student/ Teacher Ratio	Free/Discounted Lunch Recipients	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	SchoolDigger Rating (2025)	Average Standard Score (2024)	Statewide Rank (2024)	State Percentile (2024)	Rank Change from Previous Year	CAST Science 5th Grade	CAST Science 8th Grade	CAST Science All Grades	Smarter Balanced Assessments English Language Arts/Literacy 3rd Grade	Smarter Balanced Assessments English Language Arts/Literacy 4th Grade	Smarter Balanced Assessments English Language Arts/Literacy 5th Grade	Smarter Balanced Assessments English Language Arts/Literacy 6th Grade	Smarter Balanced Assessments English Language Arts/Literacy 7th Grade	Smarter Balanced Assessments English Language Arts/Literacy 8th Grade	Smarter Balanced Assessments English Language Arts/Literacy All Grades	Smarter Balanced Assessments Mathematics 3rd Grade	Smarter Balanced Assessments Mathematics 4th Grade	Smarter Balanced Assessments Mathematics 5th Grade	Smarter Balanced Assessments Mathematics 6th Grade	Smarter Balanced Assessments Mathematics 7th Grade	Smarter Balanced Assessments Mathematics 8th Grade	Smarter Balanced Assessments Mathematics All Grades	% Completely Immunized KG	% Polio KG	% Hepatitis B KG	% Varicella KG	% DTP KG	% MMR KG	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Sonoma Mountain Elementary	Public, Charter	K-6	1900 Rainier Cir.	Petaluma	94954	Sonoma County	Old Adobe Union	Yes	(n/a)	No	(n/a)	(707) 765-4305	422	17	24.8	15.4%	294 (69.7%)	1 (0.2%)	60 (14.2%)	22 (5.2%)	3 (0.7%)	0 (0.0%)	42 (10.0%)	93.3	451^st of 5857 public elementary schools	92.3%		85.9	912^th of 5869 public elementary schools	84.5%	461	60.7		60.7	87.5	79.6	80.0	66.7			78.5	85.7	79.6	64.3	59.3			72.3							$17,373	$1,153	$16,220
Loma Vista Immersion Academy	Public, Charter	K-6	207 Maria Dr.	Petaluma	94954	Sonoma County	Old Adobe Union	Yes	(n/a)	No	(n/a)	(707) 765-4302	451	18	24.5	45.9%	101 (22.4%)	4 (0.9%)	329 (72.9%)	3 (0.7%)	1 (0.2%)	1 (0.2%)	12 (2.7%)	43.1	3000^th of 5857 public elementary schools	48.8%		37.8	3317^th of 5869 public elementary schools	43.5%	317	33.3		33.3	32.8	35.2	47.1	31.7			36.6	40.9	46.3	41.2	26.8			39.6							$19,941	$1,532	$18,409
Meadow Elementary	Public	K-6	880 Maria Dr.	Petaluma	94954	Sonoma County	Waugh Elementary	No	(n/a)	No	(n/a)	(707) 762-4905	384	17	22.1	13.3%	226 (58.9%)	3 (0.8%)	77 (20.1%)	21 (5.5%)	0 (0.0%)	2 (0.5%)	55 (14.3%)	93.2	461^st of 5857 public elementary schools	92.1%		92.8	515^th of 5869 public elementary schools	91.2%	54	55.9		55.9	85.7	76.5	79.4	83.3			81.1	81.6	78.4	57.4	66.7			69.8	95.0	95.0		96.7	95.0	96.7
Corona Creek Elementary	Public	K-6	1851 Hartman Ln.	Petaluma	94954	Sonoma County	Waugh Elementary	No	(n/a)	No	(n/a)	(707) 765-3331	403	18	21.9	14.4%	254 (63.0%)	6 (1.5%)	95 (23.6%)	22 (5.5%)	2 (0.5%)	0 (0.0%)	23 (5.7%)	79.2	1188^th of 5857 public elementary schools	79.7%		84.9	955^th of 5869 public elementary schools	83.7%	233	44.4		44.4	60.6	55.0	68.5	64.9			62.0	54.6	75.0	44.4	66.7			60.3	94.3		95.7
McDowell Elementary	Public	K-6	421 South McDowell Blvd.	Petaluma	94954	Sonoma County	Petaluma City Elementary	No	(n/a)	No	(n/a)	(707) 778-4745	329	14	23.5	86.0%	21 (6.4%)	8 (2.4%)	273 (83.0%)	11 (3.3%)	4 (1.2%)	6 (1.8%)	6 (1.8%)	11.1	5560^th of 5857 public elementary schools	5.1%		20.9	4781^st of 5869 public elementary schools	18.5%	779	3.0		3.0	5.1	14.3	21.2	34.2			18.7	17.1	10.4	12.1	11.6			12.7	92.9	94.6	96.4	94.6	94.6	94.6	$19,320	$2,329	$16,991
McKinley Elementary	Public	K-6	110 Ellis St.	Petaluma	94952	Sonoma County	Petaluma City Elementary	No	(n/a)	No	(n/a)	(707) 778-4750	368	15	24.5	50.8%	125 (34.0%)	6 (1.6%)	172 (46.7%)	26 (7.1%)	6 (1.6%)	2 (0.5%)	29 (7.9%)	43.7	2967^th of 5857 public elementary schools	49.3%		55.8	2245^th of 5869 public elementary schools	61.7%	722	20.0		20.0	41.5	33.3	37.3	48.4			40.7	41.5	38.3	31.7	43.8			38.8	84.4	89.1		90.6	87.5	87.5	$14,783	$799	$13,984
Old Adobe Elementary Charter	Public, Charter	K-6	2856 Adobe Rd.	Petaluma	94954	Sonoma County	Old Adobe Union	Yes	(n/a)	No	(n/a)	(707) 765-4301	278	11	25.2	34.5%	192 (69.1%)	1 (0.4%)	68 (24.5%)	1 (0.4%)	0 (0.0%)	0 (0.0%)	16 (5.8%)	61.1	2010^th of 5857 public elementary schools	65.7%		66.2	1766^th of 5869 public elementary schools	69.9%	244	37.2		37.2	57.7	57.1	58.1	47.4			55.1	53.9	44.9	34.9	34.2			41.0							$17,850	$1,274	$16,576
Live Oak Charter	Public, Charter	K-8	100 Gnoss Concourse Bldg. 1	Petaluma	94952	Sonoma County	Live Oak Charter District	Yes	(n/a)	No	(n/a)	(707) 762-9020	271	13	21.6	26.6%	197 (72.7%)	5 (1.8%)	27 (10.0%)	8 (3.0%)	1 (0.4%)	1 (0.4%)	30 (11.1%)	59.2	2106^th of 5857 public elementary schools	64.0%		61.4	2008^th of 5869 public elementary schools	65.8%	98	51.6	62.5	56.4	50.0	40.0	58.1	72.4	75.0	75.0	61.8	25.0	32.0	33.3	50.0	44.8	64.0	41.3	81.6	86.8	81.6	86.8	86.8	92.1	$13,818	$41	$13,777
La Tercera Elementary	Public	K-6	1600 Albin Way	Petaluma	94954	Sonoma County	Old Adobe Union	No	(n/a)	No	(n/a)	(707) 765-4303	295	13	23.6	37.3%	157 (53.2%)	8 (2.7%)	107 (36.3%)	7 (2.4%)	2 (0.7%)	2 (0.7%)	12 (4.1%)	62	1962^nd of 5857 public elementary schools	66.5%		43.4	2968^th of 5869 public elementary schools	49.4%	1006	35.7		35.7	48.3	54.1	58.2	72.1			59.2	45.2	43.2	25.0	52.3			39.9							$17,696	$1,634	$16,062
Cinnabar Charter	Public, Charter	K-8	286 Skillman Ln.	Petaluma	94952	Sonoma County	Cinnabar Elementary	Yes	(n/a)	No	(n/a)	(707) 765-4345	156	9	16.4	83.3%	23 (14.7%)	1 (0.6%)	125 (80.1%)	0 (0.0%)	1 (0.6%)	1 (0.6%)	5 (3.2%)	21.3	4719^th of 5857 public elementary schools	19.4%		18.4	4994^th of 5869 public elementary schools	14.9%	275	19.1		16.7	38.9	32.0	30.0	21.4	26.7		30.4	16.7	12.0	23.8	14.3	13.3		16.5							$16,931	$1,158	$15,773

Frequently Asked Questions about Sonoma Mountain Elementary

Is Sonoma Mountain Elementary a good school?

Yes. Sonoma Mountain Elementary ranks in the top 7.7% of California elementary schools.

How many students attend Sonoma Mountain Elementary?

In the 2024-25 school year, 422 students attended Sonoma Mountain Elementary.

What district is Sonoma Mountain Elementary in?

Old Adobe Union

What is the racial makeup of Sonoma Mountain Elementary?

Students at Sonoma Mountain Elementary are 70% White, 14% Hispanic, 10% Two or more races, 5% Asian.

What schools do graduates of Sonoma Mountain Elementary attend?

Students who attend Sonoma Mountain Elementary usually go on to attend:

Middle : Kenilworth Junior High
High : Casa Grande High

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SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the California Department of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.