Altimira Middle
Test scores
CAASPP 2023-24 . % met or exceeded standardWhat this means: On the CAASPP, California's statewide test, about 28 of every 100 students at this school read and write at grade level and about 8 of 100 do math at grade level. Across all California schools, those numbers are about 47 and 36. Reading and writing scores have held steady since 2014, while math scores are down about 8 points.
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 18% of students here test proficient in math and reading, below the roughly 54% typical for California schools with a similar share of low-income students. BeatsExpectations compares each school with others at the same poverty level, not by raw scores, so a school lands here when its results trail those comparable schools, which is not the same as having low scores. A higher-scoring school can still fall in this tier if similar schools score higher still.
7-year change
SY 2017-18 vs SY 2024-25About 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
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