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Excellent

#1160 of 9,533 schools in CA

Top 12% in state

Chaffey District Online High

High School · Chaffey Joint Union High

1802 East 7th St., Ontario, CA 91764

Enrollment

112

Student-Teacher

22.4:1

Score

8.1

Grades

9th – 12th

Updated 2022-23

How this school compares

In Ontario

#6 of 37

public schools

California high schools

#191 of 1,892

In district

#1 of 10

Chaffey Joint Union High

Academic growth

9.9 / 10

Exceptional

About Chaffey District Online High

Chaffey District Online High serves 112 students in grades 9-12 as an alternative high school in Ontario, California. With just 5 full-time equivalent teachers, this small online school maintains a student-teacher ratio of 22.4:1, offering a personalized educational environment for students seeking flexible learning options. The school demonstrates impressive academic performance, earning a MySchoolScout rating of 8.7 out of 10 and ranking #363 out of 9,566 California high schools, placing it in the 96th percentile statewide.

Students excel particularly in English Language Arts, with 88% achieving proficiency or above across grade levels. In mathematics, 62% of students demonstrate proficiency or above, showing solid foundational skills in this critical subject area. Located on East 7th Street in Ontario, the school serves families in the 91764 ZIP code area, where the median household income is $71,336 and median home value reaches $475,300.

The surrounding community has a 15.8% poverty rate, with 16% of residents holding bachelor's degrees or higher among the ZIP's 55,311 residents. This alternative high school provides an effective online learning environment for students who benefit from non-traditional educational delivery methods, situated in San Bernardino County's mid-size city of Ontario.

What Parents Should Know

With an enrollment of 112 students, Chaffey District Online High is a smaller school where families often find a close-knit community atmosphere. Smaller settings can mean more individual attention from teachers and staff, though they may offer fewer extracurricular options than larger schools.

The student-teacher ratio at Chaffey District Online High is 22.4:1, which is higher than the national average. This may mean larger class sizes, so parents should ask about classroom support, teaching assistants, and how the school differentiates instruction for students who need extra help.

Score Breakdown

Full Profile · 4/4 metrics
Student Progress9.9Exceptional25%
Year-over-year improvement in student test scores.
View breakdown
Years of Data2
Annual Change+3 pts/yr
Data Period2019–2024
TrendImproving
Academics9.7Exceptional25%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency62.5%
Reading/ELA Proficiency87.5%
Math vs. State Avg+34.5 pts
Reading vs. State Avg+31.6 pts
Overall Proficiency75%
Expected (poverty-adj.)45%
vs. Expected+30.5 pts
Adjusted Percentile96th
College Readiness6.5Above Average30%
Graduation rates, AP course participation, and IB availability.
View breakdown
IB ProgramNo
Resources & Environment6.1Above Average20%
Student-teacher ratio, per-pupil spending, and attendance.
View breakdown
Student-Teacher Ratio22.4:1
Per-Pupil Spending$15,468

Chaffey District Online High — Students at Chaffey District Online High score 75% proficient, which is above what's typical for similar communities (expected: 45%).

How we calculate scores →

Equity & Diversity

Shown separately, not included in overall score

Free/Reduced Lunch

53.6%

Students qualifying for federal meal assistance

Test Scores CA CAASPP (2023-24)

Math Proficiency 51.7%
School
State
31.8%
ELA Proficiency 88.3%
School
State
51.5%

Based on 6 test records from CA state assessments. About our data

Proficiency Trend

↑ Improving

Average proficiency (% at or above grade level) across Math & ELA over time.

2019
Math
30%
ELA
90%
2024
Math
62.5%
ELA
87.5%

Source: EdFacts (NCES) and state assessment data. Growth score: 9.9/10.

How Chaffey District Online High Compares

See how Chaffey District Online High performs across key quality dimensions compared to state benchmarks.

Overall Score
8.1/10
88th percentile in CA
Academic
9.7/10
9.7/10
Growth
9.9/10
Above average
Environment
6.1/10
Above average

Funding & Resources

Free/Reduced Lunch
Students eligible for subsidized meals
54%
Teaching Staff
22:1 student-teacher ratio
5 teachers

Location

1802 East 7th St., Ontario, CA 91764

Nearby Alternatives

Families considering Chaffey District Online High may also want to explore other high schools in the area. Corona Elementary (rated 8.6/10, 0.6 miles away), which scores slightly higher. Another option is Berlyn Elementary (rated 8.2/10, 1.4 miles away), with a very similar rating. Additionally, Mariposa Elementary (rated 8.0/10, 1.4 miles away), with a very similar rating. For more schools in Ontario, see our Ontario schools guide .

Nearby Schools

20 within 1.9 mi
School Distance Rating
Chaffey Community Day Ontario 0.0 mi
Arroyo Elementary Ontario 0.1 mi 6.2
Valley View High (Continuation) Ontario 0.2 mi 6.0
SAN ANTONIO CHRISTIAN SCHOOL Ontario 0.3 mi 6.5
Corona Elementary Ontario 0.6 mi 8.6
Vineyard Elementary Ontario 0.6 mi 5.2
Los Amigos Elementary Rancho Cucamonga 0.7 mi 4.7
Fountain of Truth Christian Academy Rancho Cucamonga 1.0 mi
FOUNTAIN OF TRUTH CHRISTIAN ACADEMY Rancho Cucamonga 1.0 mi 5.7
Bear Gulch Elementary Rancho Cucamonga 1.1 mi 3.8
Del Norte Elementary Ontario 1.1 mi 5.4
MONTESSORI SCHOOL HOUSE Rancho Cucamonga 1.1 mi 7.1
Ray Wiltsey Middle Ontario 1.3 mi 7.1
Mariposa Elementary Ontario 1.4 mi 8.0
Fröhlich International Preparatory Academy Rancho Cucamonga 1.2 mi
Cucamonga Elementary Rancho Cucamonga 1.4 mi 4.8
Berlyn Elementary Ontario 1.4 mi 8.2
Valle Vista Elementary Rancho Cucamonga 1.9 mi 7.2
Rancho Cucamonga Middle Rancho Cucamonga 1.6 mi 5.0
Central Elementary Rancho Cucamonga 1.9 mi 5.9

Neighborhood Census ACS (2019-2023)

Census data for ZIP 91764 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$75,605

Median Home Value

$524,100

Median Rent

$2,039/mo

Population

55,412

College Educated

18.4%

Homeownership

44.6%

Avg Commute

31.1 min

Poverty Rate

16.8%

Median Age

31.9

Community Profile

The community surrounding Chaffey District Online High has a median household income of $75,605. It is a community where 18% of adults hold a bachelor's degree or higher. The median home value in the area is $524,100, with a median rent of $2,039/month. The area has a poverty rate of 16.8%. The average commute for residents is 31 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.

Similar Schools

Schools in the same state with comparable level, size, and ratings

School Rating
FUSION ACADEMY - PASADENA Los Angeles, CA 8.1
AMERICAN UNIFIED SCHOOL OF TECHNOLOGY Encino, CA 8.2
Diamond Technology Institute Watsonville, CA 8.0
FUSION ACADEMY LOS GATOS Los Gatos, CA 8.0
Jordan Secondary Learning Center Garden Grove, CA 8.0
Shasta Collegiate Academy Redding, CA 8.0

Frequently Asked Questions

Common questions about Chaffey District Online High

What grades does Chaffey District Online High serve?

Chaffey District Online High serves students in grades 9th through 12th.

How many students attend Chaffey District Online High?

Chaffey District Online High has an enrollment of approximately 112 students.

What is the student-teacher ratio at Chaffey District Online High?

The student-teacher ratio at Chaffey District Online High is 22.4:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Chaffey District Online High rank in CA?

Chaffey District Online High is ranked #1160 out of 9,533 schools in CA.

What is Chaffey District Online High's MySchoolScout rating?

Chaffey District Online High has a composite rating of 8.1 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.

What are the test scores at Chaffey District Online High?

Based on the most recent state assessment data, Chaffey District Online High has 51.7% math proficiency and 88.3% reading/ELA proficiency.

Is Chaffey District Online High a charter school?

No, Chaffey District Online High is not a charter school. It is a traditional public school operated by the local school district.

Is Chaffey District Online High a Title I school?

No, Chaffey District Online High is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Chaffey District Online High?

53.6% of students at Chaffey District Online High qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.

11 schools nearby View map →

Neighborhood Context

Walk Score
54 Somewhat Walkable
Transit Score
24 Minimal Transit
Bike Score
44 Somewhat Bikeable
City Safety
High (2,102/100K)

Powered by Walk Score

FBI UCR 2024. City-level (Ontario). Data >1 year old.

Quick Facts NCES CCD (SY 2022-23)

Grades
9th – 12th
Enrollment
112
Student-Teacher Ratio
22.4:1
Teachers (FTE)
5
Free/Reduced Lunch
53.6%
Type
alternative
Setting
Midsize City
County
San Bernardino County
Data Year
2023–2024

District

Chaffey Joint Union High
District Enrollment
22,628
Schools in District
11
Per-Pupil Spending
$16,769
District Rank
#1 of 10

How We Rate Schools

Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.

Read our full methodology

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