Wilson Elementary
Test scores
CAASPP 2023-24 . % met or exceeded standardWhat this means: On the CAASPP, California's statewide test, about 68 of every 100 students at this school read and write at grade level and about 62 of 100 do math at grade level. Across all California schools, those numbers are about 47 and 36. Reading and writing scores are up about 9 points since 2014, while math scores are down about 2 points.
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 65% of students here test proficient in math and reading, compared with the roughly 68% typical for California schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among California's top nor bottom 10%.
7-year change
SY 2017-18 vs SY 2024-25About Wilson Elementary
Wilson Elementary is an elementary-level community of cozy scale in Petaluma, California, operated by Wilmar Union Elementary, serveing 235 students in grades K through 6. By comparison, California's public schools average about 465 students each, so Wilson Elementary sits 49% leaner than that benchmark.
Wilmar Union Elementary is the operating authority for Wilson Elementary, handling staffing, calendars, and reporting to the state department of education.
Demographically, Wilson Elementary records that White students make up the majority at 78%. Beyond that, the school logs 17% Hispanic. The wider county runs roughly 62% White, putting the school's mix noticeably more White than the area baseline.
Looking at the economic backdrop, The school currently runs with 10 full-time-equivalent teachers, for a student-teacher ratio near 23.5:1. That figure is higher than the state norm's 22.3:1 average. About 20% of enrolled students meet the income threshold for free or reduced-price lunch, often used as a Title I proxy. That share is lower than Sonoma County's rate of about 51%.
After controlling for student poverty, Wilson Elementary tracks the demographic baseline. The model predicts 67.6% given the school's FRL share; actual proficiency is 64.7%.
In the surrounding community, census data for Sonoma County shows the typical household earns roughly $104,674 per year, roughly 39% of adults have completed at least a four-year degree, and the poverty rate sits near 5%. Across Sonoma County's 184 public schools (combined enrollment of about 63,389 students), Wilson Elementary is one campus in the mix.
Nearest neighbor: Cinnabar Elementary, around 1.5 miles off. 8 of the 8 nearest public schools sit inside a five-mile radius. Ranking that nearby cluster on reported proficiency puts Wilson Elementary at 1st of 6; the average score across the group is 36.5%.
The school occupies a countryside site.
Five-year trend. Over the past 7-year window, the student count contracted 9%: 257 students in 2018 compared to 235 in 2025. Class-load math has tightened: from 24.7:1 in 2018 to 23.5:1 in 2025.
Inside the community feed, posts here usually surface around open house dates, ride-share offers, and field-trip permission slips. Contributors range from current parents to recent graduates and teachers.
Sonoma County at a glance
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