Waterloo Elementary
School pathway
Test scores
CAASPP 2023-24 . % met or exceeded standardWhat this means: On the CAASPP, California's statewide test, about 46 of every 100 students at this school read and write at grade level and about 29 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 13 points since 2014, while math scores are up about 14 points.
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 37% of students here test proficient in math and reading, compared with the roughly 41% 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 Waterloo Elementary
Waterloo Elementary, a modestly sized 6-8 campus in Stockton, California, one of the schools within Linden Unified, hosts 339 students, covering grades 5 through 8. Enrollment runs roughly 49% smaller than the state mean of about 659.
Waterloo Elementary is one of 6 schools operated by Linden Unified, a district that works with 2,339 students overall.
In terms of who attends, Waterloo Elementary reports that the largest single group is Hispanic, at 58% of enrollment. Other groups include 34% White, 7% multiracial. The wider county runs roughly 43% Hispanic, putting the school's mix meaningfully more Hispanic than the area baseline.
Looking at the economic backdrop, Waterloo Elementary shows 15 full-time-equivalent teachers, putting the student-to-teacher ratio at about 22.7:1. Statewide, the average ratio sits near 20.7:1, putting Waterloo Elementary higher than the state norm the norm. An estimated 65% of students are eligible for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal.
Adjusting for the school's free-and-reduced-lunch share, Waterloo Elementary sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 40.7%; this one delivers 37.3%.
In the broader community, ACS estimates for San Joaquin County put median household income runs about $92,179, 23% of adults hold a bachelor's degree or higher, and census figures put the poverty rate at about 10%. Across San Joaquin County's 251 public schools (combined enrollment of about 153,026 students), Waterloo Elementary is one campus in the mix.
The closest other public school is Glenwood Elementary, roughly 2.8 miles away. 8 of the 8 nearest public schools sit inside a five-mile radius. On composite proficiency, Waterloo Elementary comes 1st of 6 in the immediate cluster, above the nearby-schools average of 26.1%.
The school occupies an outlying site.
Trend over the last 7 years. Over the past 7-year window, the student count edged down 18%: 413 students in 2018 compared to 339 in 2025. The White share of enrollment decreased from 39% to 34% over that span. Class-load math has fell: from 28.3:1 in 2018 to 22.7:1 in 2025.
In the discussion threads here, the feed for Waterloo Elementary typically covers classroom updates, athletics, and weather closures. Parents, students, alumni, and staff are welcome to weigh in.
San Joaquin County at a glance
View full county profileQuick facts
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