Skip to main content

Excellent

#802 of 9,539 schools in CA

Top 8% 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

8.5

Grades

9th – 12th

Data vintage2022-23

How this school compares

California schools

#802 of 9,539

In Ontario

#4 of 37

public schools

In district

#1 of 10

Chaffey Joint Union High

Academic growth

10.0 / 10

Excellent

School shortlistprofile + nearby

Shortlisting around Chaffey District Online High?

Use this profile as one decision point, then compare nearby options, source confidence, and commute fit before picking a neighborhood around it.

Shortlist starter

Start with these real page-level signals, then use the full table and map below.

Chaffey District Online High

8.5/10

High School in Ontario · grades 9th – 12th. Start here, then compare fit against nearby and district options.

Chaffey Community Day

Nearby

0.0 mi away. Use as a geographic alternative in the same move search.

Arroyo Elementary

5.8/10

0.1 mi away. Use as a geographic alternative in the same move search.

About Chaffey District Online High

Chaffey District Online High is a public high school in Ontario, CA, part of Chaffey Joint Union High. Chaffey District Online High serves approximately 112 students, and covers grades 9th-12th, and has a 22.4:1 student-teacher ratio. Chaffey District Online High has a current MySchoolScout rating of 8.5 out of 10 and ranks #802 of 9,539 schools in CA.

Structured state assessment records for Chaffey District Online High show 39% math proficiency (multi-year average, 2015-2024) and 75% reading/ELA proficiency (multi-year average, 2015-2024).

How it compares1.4 pts above district
  • This school 8.5 · Excellent
  • District avg 7.1
  • CA avg 6.5

What Parents Should Know

At 112 students, Chaffey District Online High is on the smaller side. That usually buys more individual attention and teachers who know every kid by name, with the trade-off of fewer electives and extracurriculars than a larger school can staff. Ask what activities it actually offers.

Chaffey District Online High runs 22.4:1 students to teachers, above the national average. That often means bigger classes. Ask how the school supports kids who need extra help, and whether there are teaching assistants or small-group time.

48% of students at Chaffey District Online High were chronically absent in the 2022-23 school year, above the national average. Chronic absenteeism means missing 15 or more school days, and at high rates it drags on classroom pacing for everyone. Ask what the school does to help families get kids to class consistently.

Score Breakdown

Full Profile · 4/4 metrics
Student Progress10.0Excellent25%
Year-over-year improvement in student test scores.
View breakdown
Years of Data6
Annual Change+4.43 pts/yr
Data Period2015–2024
TrendImproving
Academics9.7Excellent25%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency62.5% (2024 CAASPP)
Reading/ELA Proficiency87.5% (2024 CAASPP)
Math vs. State Avg+34.5 pts
Reading vs. State Avg+31.6 pts
Overall Proficiency75% (2024 CAASPP, Math+ELA)
Expected (poverty-adj.)44% (model expectation from 2024 CAASPP)
vs. Expected+30.8 pts
Adjusted Percentile96th
College Readiness9.7Excellent30%
Graduation rates, AP course participation, and IB availability.
View breakdown
4-Year Graduation Rate90%+
IB ProgramNo
Resources & Environment3.3Needs Improvement20%
Student-teacher ratio, per-pupil spending, and attendance.
View breakdown
Student-Teacher Ratio22.4:1
Per-Pupil Spending$16,769
Chronic Absenteeism48.2%

Chaffey District Online High — Students at Chaffey District Online High score 75% proficient, which is above what's typical for similar communities (expected: 44%).

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 38.5% (multi-year average, 2015-2024)
School
State
31.8% (2024 CAASPP)
ELA Proficiency 74.9% (multi-year average, 2015-2024)
School
State
51.5% (2024 CAASPP)

Based on 14 test records from CA state assessments. About our data

Proficiency Trend

↑ Improving

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

2015
Math
24.5%
ELA
30%
2016
Math
30%
ELA
69.5%
2017
Math
30%
ELA
69.5%
2018
Math
30%
ELA
90%
2019
Math
30%
ELA
90%
2024
Math
62.5%
ELA
87.5%

Source: EdFacts (NCES) and state assessment data. Growth score: 10.0/10.

How Chaffey District Online High Compares

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

Overall Score
8.5/10
92th percentile in CA
Academic
9.7/10
Excellent
Growth
10.0/10
Excellent
Environment
3.3/10
Needs Improvement
Advanced STEM
3/5
Subjects offered
Gifted & Talented
Yes
Program available

Funding & Resources

Free/Reduced Lunch
Students eligible for subsidized meals
54%
Teaching Staff
22:1 student-teacher ratio
5 teachers
Chronic Absenteeism
Students missing 15+ days per year (SY 2022-23)
48.2%

Programs & Offerings

Advanced STEM Courses3 of 5 advanced subjects offered
Algebra II, Advanced Math, Calculus, Chemistry, Physics·CRDC 2021-22
Gifted & Talented Program Available
This school offers a gifted and talented program for qualifying students. · CRDC 2021-22

Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more

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. Vineyard Elementary (rated 8.0/10, 0.6 miles away), with a comparable rating. Another option is Ray Wiltsey Middle (rated 7.4/10, 1.3 miles away), a more accessible option. Additionally, Corona Elementary (rated 7.2/10, 0.6 miles away), a more accessible option. 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 5.8
Valley View High (Continuation) Ontario 0.2 mi 5.8
SAN ANTONIO CHRISTIAN SCHOOL Ontario 0.3 mi 6.5
Corona Elementary Ontario 0.6 mi 7.2
Vineyard Elementary Ontario 0.6 mi 8.0
Los Amigos Elementary Rancho Cucamonga 0.7 mi 4.5
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 4.3
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 7.4
Mariposa Elementary Ontario 1.4 mi 6.7
Fröhlich International Preparatory Academy Rancho Cucamonga 1.2 mi
Cucamonga Elementary Rancho Cucamonga 1.4 mi 5.7
Berlyn Elementary Ontario 1.4 mi 6.4
Valle Vista Elementary Rancho Cucamonga 1.9 mi 5.9
Rancho Cucamonga Middle Rancho Cucamonga 1.6 mi 5.6
Central Elementary Rancho Cucamonga 1.9 mi 4.9

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

Similar Schools

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

School Rating
Excelsior Charter School Corona-Norco Victorville, CA 8.5
RIO HONDO PREP Arcadia, CA 8.5
THE UNIVERSITY OF AMERICA HIGH SCHOOL Murrieta, CA 8.5
WALDORF SCHOOL-PENINSULA Mountain View, CA 8.5
HOLY NAMES HIGH SCHOOL Oakland, CA 8.6
Mendocino High Mendocino, CA 8.6

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 ranks #802 of 9,539 schools in CA.

What is Chaffey District Online High's MySchoolScout rating?

Chaffey District Online High has a current MySchoolScout rating of 8.5 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.

What are the test scores at Chaffey District Online High?

Based on loaded state assessment records, Chaffey District Online High has 39% math proficiency (multi-year average, 2015-2024) and 75% reading/ELA proficiency (multi-year average, 2015-2024).

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
47 Somewhat Bikeable

Powered by Walk Score

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
Chronic Absenteeism (SY 2022-23)
48.2%
4-Year Graduation
90%+

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

A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.

See how we rate

Related reading

Get school insights in your inbox

New rankings, best-schools lists, and parent guides — delivered free. No spam, unsubscribe anytime.

We respect your privacy. Unsubscribe at any time.