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Alta Loma High
Test scores
CAASPP 2024-25 . % met or exceeded standardWhat this means: On the CAASPP, California's statewide test, about 72 of every 100 students at this school read and write at grade level and about 33 of 100 do math at grade level. Across all California schools, those numbers are about 49 and 38. Reading and writing scores are up about 2 points since 2014, while math scores are down about 2 points.
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 55% of students here test proficient in math and reading, compared with the roughly 44% 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 Alta Loma High
As a substantial secondary school in Alta Loma, California, Alta Loma High teaches 2,386 students from grades 9 through 12, one of the schools within Chaffey Joint Union High. By comparison, California's public schools average about 838 students each, so Alta Loma High sits 185% bigger than that benchmark.
Across the 11 schools in Chaffey Joint Union High (22,040 students total), Alta Loma High accounts for its share of the district's footprint.
Looking at the student body, Alta Loma High shows that the largest single group is Hispanic, at 60% of enrollment. Beyond that, the school lists 23% White, 6% Black, 5% Asian, 5% multiracial.
In terms of school funding signals, Alta Loma High logs 96 full-time-equivalent teachers, putting the student-to-teacher ratio at about 24.8:1. That figure is higher than the state norm's 18.2:1 average. An estimated 60% of students are eligible for free or reduced-price lunch, a commonly cited indicator of low-income enrollment. That share is lower than San Bernardino County's rate of about 74%.
With demographic context factored in, Alta Loma High sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 44.2%; this one delivers 55.4%.
Across the wider county, community-level numbers for San Bernardino County indicate the typical household earns roughly $85,478 per year, about 23% of the adult population holds a bachelor's degree or above, and census figures put the poverty rate at about 11%. Across San Bernardino County's 583 public schools (combined enrollment of about 393,648 students), Alta Loma High is one campus in the mix.
Carnelian Elementary is the nearest neighboring public school, about 0.3 miles from this campus. 8 of the 8 nearest public schools sit inside a five-mile radius. Ranking that nearby cluster on reported proficiency puts Alta Loma High at 3rd of 9; the average score across the group is 45.4%.
The school occupies a commuter-belt site.
Over the past 7-year window. Alta Loma High's enrollment has edged down 4% since 2018, when it stood at 2,490 (now 2,386). The White share of enrollment contracted from 31% to 23% over that span.
Within the allk12 community for this school, posts here usually surface around open house dates, ride-share offers, and field-trip permission slips. Anyone with firsthand experience at this school can post or comment.
San Bernardino County at a glance
View full county profileQuick facts
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