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Altimira Middle

Public Grades 6-8

2256^th

SchoolDigger Rank ?

of 2,740 California Middle Schools

Better than 18% of California middle schools

Summary

Altimira Middle is a 324-student school serving grades 6–8 in Sonoma, in the Sonoma Valley Unified area. Its clearest concern is English language arts: in 2025–26, 26% of students were proficient, below the state’s 49% and district’s 34%, and lower than every nearby school in the comparison.

Altimira’s results are also low in math and science, though it compares somewhat better in those subjects than in ELA. Its math proficiency was 18% and science was 21%; each was the third-lowest among the 10 nearby schools, while ELA was lowest. Math was closer to the district result (20%) than to the state (38%), while science was closer to the state (36%) than to the district (24%). Spanish assessment results offer a more mixed picture: reading proficiency was 9%, near the state’s 10% and above the district’s 7%, but writing was 8%, below the state’s 17%.

Math and science have improved since 2022–23, while ELA has not: math rose 9 percentage points and science 10, but ELA fell by 1 point. Altimira’s SchoolDigger ranking rose from the 12th percentile in 2021–22 to the 18th in 2025–26, though it still has 1 star and ranks 2,225th of 2,703 California schools. Its 2024–25 student–teacher ratio was 16.1 students per teacher, the lowest in the nearby comparison, and 42% of students were reported as free/reduced lunch eligible that year, below the nearby average of 53%. One notable subgroup result is that SchoolDigger placed Altimira at the 5th percentile statewide for how well it serves Low Socio Economic Status Students in 2025–26, down from the 14th percentile in 2023–24, even as the school’s overall percentile rose.

324

Students ?

16.1

Student/teacher ratio ?

$24,117

Per pupil spending ?

42.3%

Free/reduced lunch eligible (2024-25) ?

All students in California receive free school meals.

17805 Arnold Dr.
Sonoma, CA 95476-4019

(707) 935-6020

District: Sonoma Valley Unified

Students who attend Altimira Middle usually attend:

High:

Sonoma Valley High

Racial breakdown:

Hispanic:

83.3%

White:

14.8%

Two or more races:

1.2%

See top rated California middle schools

Compare Altimira Middle to nearby middle schools!

At a glance

▼ Ranking trend: Declining — 24th percentile in 2015 → 18th in 2026

Worth a look

!Test scores below the California average (19% vs 42% meeting standards)

!In the lower quartile statewide (18th percentile)

!Ranking has slipped — down 6 percentile points since 2015

Students meeting standards (2025-2026) ?

This school19%

District avg22%

California avg42%

2,256^th of 2,740

California public middle schools ?

Bottom 18%▼ down 19 pts since 2016

From bottom 37% (2016) to bottom 18% (2026)

See the entire ranking list of California Middle Schools →

★★★★★

SchoolDigger rating ?

1254^th of 1,530Sonoma Valley Unified 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
2026	19.1	2256 of 2740	17.7%	★☆☆☆☆
2025	17.9	2320 of 2761	16.0%	★☆☆☆☆
2024	17.5	2372 of 2783	14.8%	★☆☆☆☆
2023	18.5	2342 of 2781	15.8%	★☆☆☆☆
2022	16.0	2404 of 2740	12.3%	★☆☆☆☆
2019	27.4	1895 of 2715	30.2%	★★☆☆☆
2018	30.7	1642 of 2480	33.8%	★★☆☆☆
2017	34.2	1555 of 2508	38.0%	★★☆☆☆
2016	32.0	1580 of 2497	36.7%	★★☆☆☆
2015	23.4	1887 of 2477	23.8%	★☆☆☆☆
2013	29.2	1734 of 2379	27.1%	★☆☆☆☆
2012	26.1	1761 of 2259	22.0%	★☆☆☆☆
2011	46.1	1202 of 2236	46.2%	★★☆☆☆
2010	38.6	1348 of 2179	38.1%	★★☆☆☆
2009	43.5	1122 of 2063	45.6%	★★☆☆☆
2008	39.6	1169 of 2005	41.7%	★★☆☆☆
2007	52.7	838 of 1999	58.1%	★★★☆☆
2006	61.4	608 of 1804	66.3%	★★★☆☆
2005	65.6	509 of 1777	71.4%	★★★★☆
2004	53.3	711 of 1769	59.8%	★★★☆☆

Disabled

Year	Avg score	Statewide rank	California percentile	Rating
2022	28.2	1128 of 1531	26.3%	★☆☆☆☆
2019	45.8	629 of 1491	57.8%	★★★☆☆
2018	41.7	661 of 1369	51.7%	★★★☆☆

English Language Learner

Year	Avg score	Statewide rank	California percentile	Rating
2024	31.1	1161 of 1478	21.4%	★☆☆☆☆
2023	26.3	1428 of 1521	6.1%	☆☆☆☆☆
2022	29.0	1296 of 1540	15.8%	★☆☆☆☆
2019	41.4	629 of 1442	56.4%	★★★☆☆
2018	43.4	548 of 1364	59.8%	★★★☆☆

Female

Year	Avg score	Statewide rank	California percentile	Rating
2026	21.4	1996 of 2516	20.7%	★☆☆☆☆
2025	21.0	2028 of 2533	19.9%	★☆☆☆☆
2024	22.3	2005 of 2551	21.4%	★☆☆☆☆
2023	20.0	2090 of 2531	17.4%	★☆☆☆☆
2022	15.7	2235 of 2509	10.9%	★☆☆☆☆
2019	24.1	1818 of 2380	23.6%	★☆☆☆☆
2018	31.8	1513 of 2262	33.1%	★★☆☆☆

Hispanic

Year	Avg score	Statewide rank	California percentile	Rating
2026	11.2	2234 of 2357	5.2%	☆☆☆☆☆
2025	18.7	2051 of 2395	14.4%	★☆☆☆☆
2024	15.7	2153 of 2388	9.8%	☆☆☆☆☆
2023	19.1	2051 of 2374	13.6%	★☆☆☆☆
2022	16.5	2141 of 2359	9.2%	☆☆☆☆☆
2019	21.3	1849 of 2213	16.4%	★☆☆☆☆
2018	26.9	1560 of 2072	24.7%	★☆☆☆☆

Low Socio Economic Status

Year	Avg score	Statewide rank	California percentile	Rating
2026	10.9	2399 of 2529	5.1%	☆☆☆☆☆
2025	14.3	2330 of 2542	8.3%	☆☆☆☆☆
2024	18.8	2226 of 2579	13.7%	★☆☆☆☆
2023	17.4	2271 of 2531	10.3%	★☆☆☆☆
2022	18.9	2138 of 2458	13.0%	★☆☆☆☆
2019	22.6	1948 of 2369	17.8%	★☆☆☆☆
2018	29.0	1622 of 2230	27.3%	★☆☆☆☆

Male

Year	Avg score	Statewide rank	California percentile	Rating
2026	17.3	2155 of 2514	14.3%	★☆☆☆☆
2025	16.8	2204 of 2534	13.0%	★☆☆☆☆
2024	14.6	2304 of 2552	9.7%	☆☆☆☆☆
2023	17.4	2205 of 2538	13.1%	★☆☆☆☆
2022	17.0	2213 of 2527	12.4%	★☆☆☆☆
2019	30.5	1585 of 2407	34.2%	★★☆☆☆
2018	28.0	1587 of 2273	30.2%	★★☆☆☆

Special Education

Year	Avg score	Statewide rank	California percentile	Rating
2026	28.2	1203 of 1605	25.0%	★☆☆☆☆
2025	27.4	1196 of 1566	23.6%	★☆☆☆☆
2024	22.7	1365 of 1552	12.0%	★☆☆☆☆
2023	25.1	1256 of 1531	18.0%	★☆☆☆☆

White

Year	Avg score	Statewide rank	California percentile	Rating
2026	32.7	1005 of 1490	32.6%	★★☆☆☆
2025	29.3	1089 of 1520	28.4%	★☆☆☆☆
2024	25.8	1143 of 1537	25.6%	★☆☆☆☆
2023	19.8	1250 of 1543	19.0%	★☆☆☆☆
2022	11.5	1431 of 1555	8.0%	☆☆☆☆☆
2019	32.6	1098 of 1602	31.5%	★★☆☆☆
2018	33.2	1021 of 1496	31.8%	★★☆☆☆

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)

White (2026)33rd percentile+15 vs school

Disabled (2022)26th percentile+14 vs school

Special Education (2026)25th percentile+7 vs school

English Language Learner (2024)21st percentile+7 vs school

Female (2026)21st percentile+3 vs school

Male (2026)14th percentile-3 vs school

Hispanic (2026)5th percentile-12 vs school

Low Socio Economic Status (2026)5th percentile-13 vs school

By subject vs California (2025-2026) ?

English Language Arts/Literacy26%-23 vs state

Science21%-15 vs state

Listening19%-5 vs state

Mathematics18%-21 vs state

Overall10%~ state avg

Reading9%~ state avg

Writing8%-9 vs state

★

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Schools Near Altimira Middle

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Ranking:

E Elementary M Middle H High A Alternative P Private

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

School													Students/Teachers											Ranking (2026)				Ranking (2025)				CSA Spanish Overall (2026)				CSA Spanish Listening (2026)				CSA Spanish Writing (2026)				CSA Spanish Reading (2026)				CAST Science (2026)		Smarter Balanced Assessments English Language Arts/Literacy (2026)				Smarter Balanced Assessments Mathematics (2026)				Per Pupil Expenditures (2025)
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/reduced lunch (2024-25)	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2026)	Statewide Rank (2026)	State Percentile (2026)	SchoolDigger Rating (2026)	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	Rank Change from Previous Year	CSA Spanish Overall 6th Grade	CSA Spanish Overall 7th Grade	CSA Spanish Overall 8th Grade	CSA Spanish Overall All Grades	CSA Spanish Listening 6th Grade	CSA Spanish Listening 7th Grade	CSA Spanish Listening 8th Grade	CSA Spanish Listening All Grades	CSA Spanish Writing 6th Grade	CSA Spanish Writing 7th Grade	CSA Spanish Writing 8th Grade	CSA Spanish Writing All Grades	CSA Spanish Reading 6th Grade	CSA Spanish Reading 7th Grade	CSA Spanish Reading 8th Grade	CSA Spanish Reading All Grades	CAST Science 8th Grade	CAST Science All Grades	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 6th Grade	Smarter Balanced Assessments Mathematics 7th Grade	Smarter Balanced Assessments Mathematics 8th Grade	Smarter Balanced Assessments Mathematics All Grades	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Altimira Middle	Public	6-8	17805 Arnold Dr.	Sonoma	95476	Sonoma County	Sonoma Valley Unified	No	(n/a)	No	(n/a)	(707) 935-6020	324	20	16.1	42.3%	48 (14.8%)	0 (0.0%)	270 (83.3%)	1 (0.3%)	1 (0.3%)	0 (0.0%)	4 (1.2%)	19.1	2256^th of 2740 public middle schools	17.7%		17.9	2320^th of 2761 public middle schools	16.0%	64	2.6	18.2	10.3	10.0	10.5	30.3	18.0	19.1	0.0	21.2	5.1	8.2	0.0	18.8	10.3	9.3	20.9	20.9	26.3	26.7	26.2	26.4	11.7	17.7	22.6	17.6	$24,117	$22,544	$1,573
Dual Language Immersion Academy Charter	Public, Charter	7-8	421 South Mcdowell Blvd.	Petaluma	94954	Sonoma County	Petaluma Joint Union High	Yes	(n/a)	No	(n/a)	(707) 778-4621	31	1	32.2	61.3%	2 (6.5%)	0 (0.0%)	28 (90.3%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1 (3.2%)	21.6	2148^th of 2740 public middle schools	21.6%					(n/a)		3.6	0.0	2.0		28.6	33.3	30.6		14.3	4.8	10.2		0.0	9.5	4.1	23.8	23.8		17.9	47.6	30.6		3.6	19.1	10.2	$10,673	$10,172	$501
Kenilworth Junior High	Public	7-8	800 Riesling Rd.	Petaluma	94954	Sonoma County	Petaluma Joint Union High	No	(n/a)	No	(n/a)	(707) 778-4710	812	39	20.7	45.2%	395 (48.6%)	9 (1.1%)	338 (41.6%)	19 (2.3%)	3 (0.4%)	2 (0.2%)	46 (5.7%)	60	934^th of 2740 public middle schools	65.9%		58.6	937^th of 2761 public middle schools	66.1%	3																	33.6	33.6		57.7	46.7	51.9		47.7	39.1	43.2	$23,101	$22,396	$705
Petaluma Accelerated Charter	Public, Charter	7-8	110 Ellis St.	Petaluma	94952	Sonoma County	Petaluma Joint Union High	Yes	(n/a)	No	(n/a)	(707) 778-4750	115	5	25.3	27.8%	61 (53.0%)	1 (0.9%)	34 (29.6%)	10 (8.7%)	1 (0.9%)	0 (0.0%)	8 (7.0%)	98.8	21^st of 2740 public middle schools	99.2%		98.5	27^th of 2761 public middle schools	99.0%	6																	78.0	78.0		96.1	83.1	89.1		86.3	84.8	85.5	$29,091	$28,590	$501
Unidos Middle	Public	6-8	1850 Salvador Ave	Napa	94558	Napa County	Napa Valley Unified	No	(n/a)	No	(n/a)	(707) 253-6813	599	26	23.0	61.1%	132 (22.0%)	4 (0.7%)	452 (75.5%)	2 (0.3%)	0 (0.0%)	0 (0.0%)	9 (1.5%)	49.3	1203^rd of 2740 public middle schools	56.1%		55.5	1015^th of 2761 public middle schools	63.2%	188																	44.2	44.2	40.7	50.5	58.4	49.7	29.2	26.8	25.3	27.1	$16,639	$15,680	$959
Redwood Middle	Public	6-8	3600 Oxford St.	Napa	94558	Napa County	Napa Valley Unified	No	(n/a)	No	(n/a)	(707) 253-3415	868	37	23.1	64.1%	322 (37.1%)	8 (0.9%)	485 (55.9%)	17 (2.0%)	6 (0.7%)	3 (0.3%)	25 (2.9%)	35.4	1651^st of 2740 public middle schools	39.7%		41.8	1438^th of 2761 public middle schools	47.9%	213																	25.0	25.0	42.2	39.9	37.2	39.5	31.3	30.4	21.2	27.2	$17,080	$16,074	$1,006
Petaluma Junior High	Public	7-8	700 Bantam Way	Petaluma	94952	Sonoma County	Petaluma Joint Union High	No	(n/a)	No	(n/a)	(707) 778-4724	454	24	19.1	44.7%	254 (55.9%)	1 (0.2%)	159 (35.0%)	10 (2.2%)	4 (0.9%)	2 (0.4%)	22 (4.8%)	49.2	1207^th of 2740 public middle schools	55.9%		53.8	1080^th of 2761 public middle schools	60.9%	127																	28.3	28.3		55.7	43.9	49.9		40.7	26.5	33.7	$27,985	$27,460	$525
Lawrence E. Jones Middle	Public	6-8	5154 Snyder Ln.	Rohnert Park	94928	Sonoma County	Cotati-Rohnert Park Unified	No	(n/a)	No	(n/a)	(707) 588-5600	775	37	21.0	38.3%	335 (43.2%)	14 (1.8%)	300 (38.7%)	44 (5.7%)	3 (0.4%)	7 (0.9%)	72 (9.3%)	49.3	1201^st of 2740 public middle schools	56.2%		47.4	1252^nd of 2761 public middle schools	54.7%	51																	27.4	27.4	47.9	49.6	46.0	47.9	36.0	34.0	34.6	34.8	$20,252	$19,718	$534
Technology Middle	Public	6-8	7165 Burton Ave.	Rohnert Park	94928	Sonoma County	Cotati-Rohnert Park Unified	No	(n/a)	No	(n/a)	(707) 792-4800	409	24	16.9	65.0%	91 (22.2%)	11 (2.7%)	259 (63.3%)	18 (4.4%)	2 (0.5%)	4 (1.0%)	23 (5.6%)	18.9	2264^th of 2740 public middle schools	17.4%		11.7	2561^st of 2761 public middle schools	7.2%	297																	16.7	16.7	26.6	33.6	38.1	32.2	11.6	13.5	14.2	13.0	$24,334	$23,136	$1,198
Mayacamas Countywide Middle	Public, Charter	6-8	983 Napa St.	Napa	94559	Napa County	Mayacamas Countywide Middle District	Yes	(n/a)	No	(n/a)	(707) 320-6394	127	6	20.3	44.1%	43 (33.9%)	1 (0.8%)	80 (63.0%)	1 (0.8%)	0 (0.0%)	0 (0.0%)	1 (0.8%)	23.2	2079^th of 2740 public middle schools	24.1%					(n/a)																	21.4	21.4	36.4	27.3	34.5	32.1	15.2	13.6	28.6	18.1	$28,852	$28,518	$334

Frequently Asked Questions about Altimira Middle

How many students attend Altimira Middle?

In the 2024-25 school year, 324 students attended Altimira Middle.

What district is Altimira Middle in?

Sonoma Valley Unified

What high school do graduates of Altimira Middle attend?

Students who attend Altimira Middle usually go on to attend Sonoma Valley High

Is Altimira Middle a good school?

Altimira Middle ranks in the bottom 17.7% of California middle schools.

What is the racial makeup of Altimira Middle?

Students at Altimira Middle are 83% Hispanic, 15% White, 1% Two or more races.

Rate Altimira Middle!

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Latest California data All new data »

2013–14 through 2024–25 immunization rates (updated)NewOct 19, 2026

2025–26 attendance data, dropout rates & graduation ratesOct 15, 2026

2025–26 CAST, CSA Spanish & Smarter Balanced Assessments scoresOct 15, 2026

2024–25 school spending dataJul 1, 2026

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.