How does Rancho Cucamonga High compare to other high schools in Rancho Cucamonga?

Rancho Cucamonga High has a SchoolScope composite score of 62.6/100, placing it at the 80th percentile statewide. 33% of students exceed standard, with a total of 1,506 students tested across grades and subjects.

What percentage of students exceed standards at Rancho Cucamonga High?

33.2% of students at Rancho Cucamonga High exceed the state standard on CAASPP assessments, while 59.0% 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 Rancho Cucamonga High?

27.5% of students at Rancho Cucamonga 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.

Rancho Cucamonga High

High School

Chaffey Joint Union High Rancho CucamongaSan Bernardino County91701

Composite Score

out of 100

State Percentile

of high schools

State Rank

of 1,739 California high schools

School overview

Enrollment

3,343 students

Student-Teacher Ratio

26:1

Free/Reduced Lunch

37%

Teachers

128 full-time

College & career readiness

Graduation Rate

94.1%

AP Exam Prepared

54.5%

A-G Completion

75.8%

College-Going Rate

80.5%

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

Dashboard indicators

ELA Year-over-Year

Maintained

-0.6 pts DFS change

Math Year-over-Year

Increased Significantly

+19.1 pts DFS change

EL Proficiency (ELPAC)

22.5%

English learners at Level 4 (Well Developed) · 120 tested

Data source: California School Dashboard 2025, ELPAC 2024

Student demographics

Hispanic43.1%

White20.7%

Asian12.1%

Black13.4%

Other10.7%

Performance breakdown

Performance breakdown for Rancho Cucamonga High
Category	Percentage
Exceeded Standard	33.2%
Met Standard	25.8%
Below Standard	41.0%

What other rankings don't show you

Most rating sites report "59% proficient" for Rancho Cucamonga High and stop there. Here's what that number hides:

33.2% of students exceeded standard while 25.8% merely met it. That exceeded rate is 17.7 points above the state average of 15.5%. That's 8.3 points above the Chaffey Joint Union High district average of 24.9%. The 1 nearby schools within ~3 miles average 39.5% exceeded — 6.3 points higher. 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 94.1% — above the state target. 75.8% of students complete A-G requirements for UC/CSU eligibility — a strong college readiness signal. 80.5% of graduates go on to college within a year.

Chronic absenteeism is 27.5%, better than the state average of 34.0%.

Why the exceeded vs. met split matters →