Average
#5602 of 9,539 schools in CA
Chaffey High
High School · Chaffey Joint Union High · Ontario, CA
A Chaffey Joint Union High high school where students score 8 points above what's typical for similar communities.
1245 North Euclid Ave., Ontario, CA 91762
- Math 19% vs CA 32% (2024)
- Reading 55% vs CA 52% (2024)
- 83.0% 4-year graduation
Academics
Full Profile · 4/4 metricsView breakdown
View breakdown
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Students at Chaffey High score 37% proficient, which is above what's typical for similar communities (expected: 29%).
2024 CAASPP proficiency
Most recent published year. School vs. CA average.
Trend
→ SteadyProficiency is down 8 points across the 16-year record (2009–2024) and has held near 37% recently.
Show all 14 years
Multi-year averages used by the rating model: math 31% (multi-year average, 2009-2024) · reading/ELA 54% (multi-year average, 2009-2024)
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Based on 30 test records from CA state assessments and EdFacts (NCES).
Equity & diversity
Shown separately, not included in the overall scoreFree/reduced lunch
80.8%
Students qualifying for federal meal assistance
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 rateThe neighborhood
Where Chaffey High sits, and what the surrounding area looks like.
Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries.
Getting around & local context
- Walk 39Car-Dependent
- Transit 26Some Transit
- Bike 40Somewhat Bikeable
- City Safety: High2,102/100K
Powered by
FBI Uniform Crime Reporting · 2024 · city context (Ontario), not school-level safety or attendance eligibility. Source details
Source period: 2024. Freshness not available.
Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)
Median income
$76,289
Median home value
$568,700
Median rent
$1,752/mo
College educated
21.3%
Homeownership
58.4%
Poverty rate
12.9%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 91762; this is area context, not an attendance boundary.
Programs & students
Programs & Offerings
Compare nearby
Nearby same-level schools
4 from a 5-mile search; district fallback available
| School | Score | Grades | Distance | Enrollment | Compare |
|---|---|---|---|---|---|
| Stone Ridge AcademyPrivate · tuition | 6.7 | K–12 | 0.6 mi | 113 | Compare → |
| Inland Conservatory for the Performing Arts SchoolPrivate · tuition | 7.6 | PK–12 | 1.0 mi | 49 | Compare → |
| American Christian Military Academy of ExcellencePrivate · tuition | Not rated | 6–11 | 1.1 mi | 9 | Compare → |
| Western Christian High SchoolPrivate · tuition | 7.1 | 9–12 | 1.1 mi | 395 | Compare → |
Distance is proximity only; it is not attendance eligibility.
Private · tuition: Potential private option; tuition and admission requirements have not been verified.
Chaffey Joint Union High
- Schools in district
- 11
- Rank in district
- #9 of 10
- District spending per student
- $16,769NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- 12.1%Census SAIPE · 2024
Chaffey High is listed in Chaffey Joint Union High; a district label does not verify attendance for an address.
About Chaffey High
Chaffey High is a public high school in Ontario, CA, part of Chaffey Joint Union High, serving approximately 3,223 students in grades 9th-12th with a 23.9:1 student-teacher ratio. It holds a MySchoolScout rating of 5.9 out of 10 and ranks #5,602 of 9,539 schools in CA. State assessment records show 31% math proficiency (multi-year average, 2009-2024) and 54% reading/ELA proficiency (multi-year average, 2009-2024).
What's said publicly about Chaffey High
Synthesized from public, attributable sources. Updated April 2026.
Sources (2)
Frequently asked questions
Common questions about Chaffey High
What grades does Chaffey High serve?
Chaffey High serves students in grades 9th through 12th.
How many students attend Chaffey High?
Chaffey High has an enrollment of approximately 3,223 students.
What is the student-teacher ratio at Chaffey High?
The student-teacher ratio at Chaffey High is 23.9:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Chaffey High rank in CA?
Chaffey High ranks #5,602 of 9,539 schools in CA.
What is Chaffey High's MySchoolScout rating?
Chaffey High has a current MySchoolScout rating of 5.9 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 High?
Based on loaded state assessment records, Chaffey High has 31% math proficiency (multi-year average, 2009-2024) and 54% reading/ELA proficiency (multi-year average, 2009-2024).
Is Chaffey High a charter school?
No, Chaffey High is not a charter school. It is a traditional public school operated by the local school district.
Is Chaffey High a Title I school?
No, Chaffey High is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Chaffey High?
80.8% of students at Chaffey 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.
School factsNCES Common Core of Data (CCD) (SY 2023–24)
- Grades
- 9th – 12th
- Enrollment
- 3,223
- Student-Teacher Ratio
- 23.9:1
- Teachers (FTE)
- 135
- Type
- regular
- Setting
- Midsize City
- County
- San Bernardino County
- Chronic Absenteeism (SY 2022-23)
- 37.4%
- Phone
- (909) 988-5560
- 4-Year Graduation
- 83.0%
- Area population (ZIP 91762)
- 63,656
- Area average commute
- 31.4 min
- Area median age
- 33.9
Official sources & links
About this school's data
Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.
- School directory (enrollment, grades, staff, contact)
- NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
- Source period: SY 2023–24. A newer release may be available.
- MySchoolScout rating and rank
- MySchoolScout ranking model · Low confidence
- Vintage not available. Do not use this measure alone.
- Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
- Math proficiency
- State department of education · 2024 CAASPP · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: 2024 CAASPP. A newer release may be available.
- Derived from source records rather than read directly from one field.
- Reading/ELA proficiency
- State department of education · 2024 CAASPP · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: 2024 CAASPP. A newer release may be available.
- Derived from source records rather than read directly from one field.
- Student progress (growth)
- NCES EdFacts · Mixed source periods · Low confidence
- Vintage not available. Do not use this measure alone.
- Available for part of the eligible units; results may not represent the full area.
- Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
- Neighborhood (income, housing, education)
- U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
- Older source: ACS 2019–2023 5-year estimates. Use as historical context.
- Reported for the ZCTA for ZIP 91762; this does not measure the attendance area.
- Programs (AP/IB, athletics, gifted)
- CRDC via Urban Institute · SY 2021–22 · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: SY 2021–22. A newer release may be available.
Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2024; directory SY 2023–24
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