How does Alta Loma High compare to other high schools in Alta Loma?

Alta Loma High has a SchoolScope composite score of 58.4/100, placing it at the 71st percentile statewide. 23% of students exceed standard, with a total of 1,165 students tested across grades and subjects.

What percentage of students exceed standards at Alta Loma High?

23.0% of students at Alta Loma High exceed the state standard on CAASPP assessments, while 52.6% meet or exceed it. The gap between these two numbers reveals whether the school pushes students beyond basic proficiency.

What is the chronic absenteeism rate at Alta Loma High?

29.3% of students at Alta Loma High are chronically absent (missing 10% or more of school days). This metric reflects school culture and family engagement, and is weighted at 15% in our composite score.

Alta Loma High

High School

Chaffey Joint Union High Alta LomaSan Bernardino County91701

Composite Score

out of 100

State Percentile

of high schools

State Rank

of 1,739 California high schools

School overview

Enrollment

2,400 students

Student-Teacher Ratio

24:1

Free/Reduced Lunch

61%

Teachers

99 full-time

College & career readiness

Graduation Rate

95.2%

AP Exam Prepared

48.8%

A-G Completion

73.5%

College-Going Rate

76.6%

Data source: California Department of Education — ACGR, CCI, CGR reports

Dashboard indicators

ELA Year-over-Year

Declined

-14.6 pts DFS change

Math Year-over-Year

Declined Significantly

-21.2 pts DFS change

EL Proficiency (ELPAC)

19.5%

English learners at Level 4 (Well Developed) · 113 tested

Data source: California School Dashboard 2025, ELPAC 2024

Student demographics

Hispanic59.6%

White23.8%

Asian3.8%

Black5.5%

Other7.3%

Performance breakdown

Performance breakdown for Alta Loma High
Category	Percentage
Exceeded Standard	23.0%
Met Standard	29.6%
Below Standard	47.4%

What other rankings don't show you

Most rating sites report "53% proficient" for Alta Loma High and stop there. Here's what that number hides:

23.0% of students exceeded standard while 29.6% merely met it. That exceeded rate is 7.5 points above the state average of 15.5%. That's near the Chaffey Joint Union High district average of 24.9%. Nearby schools (within ~3 miles) average 21.9% exceeded — about the same. The gap between "met" and "exceeded" is the difference between a school that clears the bar and one that raises it.

The graduation rate is 95.2% — above the state target. 73.5% of students complete A-G requirements for UC/CSU eligibility — a strong college readiness signal. 76.6% of graduates go on to college within a year.

Chronic absenteeism is 29.3%, better than the state average of 34.0%.

Why the exceeded vs. met split matters →