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SCHOOL COMMUNITY·SONOMA VALLEY UNIFIED·NCES 063720006298

Altimira Middle

17805 Arnold Dr., Sonoma, CA 95476 · (707) 935-6020 · Sonoma County
GRADES 06–08MIDDLE31-TOWNTITLE IREGULAR SCHOOL324 STUDENTS
Enrollment
324
Middle
DISTRICT 329 · STATE 659
Student : Teacher
16.2:1
20 FTE teachers
DISTRICT 16.8:1 · STATE 20.7:1
Free / Reduced Lunch
42%
137 students
DISTRICT 39% · STATE 65%
Community
0
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Grade 6
99
Grade 7
107
Grade 8
118
Student demographics
White
4815%
DISTRICT 27% · STATE 20%
Hispanic
27083%
DISTRICT 69% · STATE 56%
Asian
10%
DISTRICT 2% · STATE 12%
Two+
41%
DISTRICT 1% · STATE 6%
Native American
10%
DISTRICT 0% · STATE 0%
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
17855%
Female
14645%

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Test scores

CAASPP 2023-24 . % met or exceeded standard
English Language Arts
28.4%
CA avg 47.1% . +0.4pp since 2014
Math
8.1%
CA avg 35.6% . -7.9pp since 2014
Source: CAASPP. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
UNDERPERFORMING
Bottom 10% of CA schools after controlling for student poverty
Actual proficiency
18.2%
composite math + reading, all grades
Predicted
54.3%
based on CA schools with similar FRL share
Beats by
-36.1pp
below demographic expectation
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

7-year change

SY 2017-18 vs SY 2024-25
Enrollment
324
-174 (-35%) vs 2017
Student : Teacher
16.2:1
was 18.0:1
% White
15%
was 25%
% Hispanic
83%
was 69%
% Asian
0%
was 2%
Source: NCES Common Core of Data

About Altimira Middle

Altimira Middle is an intimate 6-8 campus in Sonoma, California, operated by Sonoma Valley Unified. The school serves 324 students in grades 6 through 8. That puts it 51% below the typical public school in California, which averages around 659 students.

Altimira Middle is one of 8 schools operated by Sonoma Valley Unified, a district that instructs 3,015 students overall.

In terms of who attends, Altimira Middle logs that nearly all students (83%) are Hispanic. Beyond that, the school logs 15% White. By comparison, Sonoma County as a whole is about 30% Hispanic, so the school skews noticeably more Hispanic than its surroundings.

Looking at school resources, Altimira Middle logs 20 full-time-equivalent teachers, putting the student-to-teacher ratio at about 16.2:1. Statewide, the average ratio sits near 20.7:1, putting Altimira Middle tighter than the state norm the norm. Roughly 42% of students at Altimira Middle qualify for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator. Set against Sonoma County (around 51%), the school's rate is south of typical.

On a residual basis (actual vs predicted given the student mix), On a poverty-adjusted basis, Altimira Middle sits in the bottom 10% statewide. Predicted proficiency from the FRL regression is roughly 54.3%; actual is 18.2%, a gap of -36.1 points.

Around the school, Sonoma County reports that median household earnings sit near $104,674, roughly 39% of adults have completed at least a four-year degree, and census figures put the poverty rate at about 5%. Altimira Middle is one of 184 public schools in Sonoma County (combined enrollment of about 63,389 students).

The closest other public school is Flowery Elementary, roughly 0.7 miles away. Within five miles, there are 8 other public schools. Ranking that nearby cluster on reported proficiency puts Altimira Middle at 7th of 7; the average score across the group is 32.4%.

Altimira Middle operates from a town-center location.

Five-year trend. Looking back 7 years, enrollment at Altimira Middle has fell 35%, going from 498 students in 2018 to 324 in 2025. Hispanic enrollment moved from 69% to 83% across the same window. Class-load math has narrowed: from 18.0:1 in 2018 to 16.2:1 in 2025.

Within the allk12 community for this school, the feed for Altimira Middle typically covers pickup logistics, teacher feedback, and after-school programs. Parents, students, alumni, and staff are welcome to weigh in.

Sonoma County at a glance

View full county profile
Population
485,040
Census ACS
Median income
$104,674
Household, ACS
Bachelor's+
39%
Adults 25+
Poverty rate
5%
Below federal line
Schools in county
184
63,389 students

Quick facts

School name
Altimira Middle
District
Sonoma Valley Unified
Address
17805 Arnold Dr., Sonoma, CA 95476
Phone
(707) 935-6020
County
Sonoma County
Level
Middle
Grade range
06–08
Total enrollment
324
Teachers (FTE)
20
Student–teacher ratio
16.2:1
Free/Reduced lunch
137 (42%)
Locale
31-Town: Fringe
NCES ID
063720006298
Charter school
No
Virtual school
No

Related schools

Other schools in Sonoma Valley Unified
Other schools in Sonoma
Nearby schools

Frequently asked questions

About Altimira Middle
How many students attend Altimira Middle?
Altimira Middle enrolls approximately 324 students in grades 06-08.
What grades does Altimira Middle serve?
Altimira Middle serves grades 06-08.
What is the student-teacher ratio at Altimira Middle?
The student-to-teacher ratio at Altimira Middle is approximately 16.2:1 (20 FTE teachers).
What is the racial breakdown of students at Altimira Middle?
At Altimira Middle, the student body is approximately 15% White, 83% Hispanic, 0% Asian, 1% Two or more.
Is Altimira Middle public or private?
Altimira Middle is a public K-12 school, overseen by Sonoma Valley Unified.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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