- Enrollment
- 3,446
- Students per teacher
- 24.6:1
- Resource Index
- 28/100
High school (grades 9-12) · Ontario, CA
Chaffey District Online High
Federal NCES profile for Chaffey District Online High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 42/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 060816013110
👥 S:T ratio 26
🌟 Gifted program 70
🎓 Counselors 63
📋 Attendance 8
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Chaffey District Online High earns 42/100 on the Resource Investment Index, with class sizes smaller than 75% of California schools.
- #3 of 6
- high schools in Ontario · Resource Index
- 42
- Resource Index · Typical
- 18.6:1
- small classes for California
- 43.1%
- free-lunch eligible
Chaffey District Online High has class sizes smaller than 75% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Chaffey District Online High ranks #3 of 6 high schools in Ontario, CA.
School address
District: Chaffey Joint Union High · California
NCES ID 060816013110 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+10 students YoY
Chaffey District Online High grew from 102 students in 2022-23 to 112 in 2023-24 (+9.8%).
Teacher FTE held 5.4 → 5.4 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Growing CCD campus
+10 students YoY 060816013110 · Ontario, CA High · SMALL · TRAD
93 enr · 18.6:1 · 43.1% lunch · RII 42
Nearest enrollment peer: Etiwanda High (3,446 students)
Chaffey District Online High grew from 102 students in 2022-23 to 112 in 2023-24 (+9.8%). Teacher FTE held 5.4 → 5.4 across the same CCD years. Read with this school → · District book → · California schools → · Find another →
Chaffey District Online High in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Etiwanda High
Etiwanda High
3,446 students
- Rancho Cucamon
Rancho Cucamonga High
3,221 students
- Chaffey High
Chaffey High
3,127 students
- Los Osos High
Los Osos High
2,759 students
- Montclair High
Montclair High
2,515 students
- This school 93
Chaffey District Online High
93 students
What this shows Chaffey District Online High reports 93 students on the CCD universe file.
How Chaffey District Online High compares
Chaffey District Online High is a growing campus on CCD: ratios and free-lunch share vs California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 18.6:1 | ▼ 13% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 43.1% | ▼ 22% | 55.5% | 51.7% |
| Enrollment | 93 | top 90% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
18.6:1
Leaner classes than 22% of US schools, heavier class loads than most.
93
Bigger than 9% of US schools by enrollment, a small campus.
Equity indicators methodology
Economic need
43.1%
free-lunch eligible
- 22% below the California average of 55.5%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
18.6:1
students per teacher
- 13% below state mean
Top 25% in California - lower ratio than 75% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
36.6%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$16,706
per pupil, district-wide
- below California avg of $18,665
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors0.5 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
Hispanic or Latino 59.1%
White 23.7%
Asian 6.5%
Two or More 6.5%
African American 4.3%
Largest group: Hispanic or Latino at 59.1% of enrollment.
Student-body diversity index 58.4/100
Simpson diversity index - at 58.4, Chaffey District Online High is more mixed than the California school average of 46.0.
Programs
AP program Not offered
Gifted & talented Yes
District finance for Chaffey Joint Union High reports $16,706 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Chaffey District Online High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Etiwanda High | Larger | Similar economic need | Higher S:T ratio |
| Rancho Cucamonga High | Larger | Lower economic need | Higher S:T ratio |
| Chaffey High | Larger | Higher economic need | Higher S:T ratio |
| Los Osos High | Larger | Lower economic need | Higher S:T ratio |
| Montclair High | Larger | Higher economic need | Higher S:T ratio |
Comparisons are relative to Chaffey District Online High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 3,221
- Students per teacher
- 24.4:1
- Resource Index
- 31/100
- Enrollment
- 3,127
- Students per teacher
- 22.8:1
- Resource Index
- 30/100
- Enrollment
- 2,759
- Students per teacher
- 24.2:1
- Resource Index
- 28/100
- Enrollment
- 2,515
- Students per teacher
- 22.5:1
- Resource Index
- 36/100
Similar high schools in Ontario
5 comparable high schools (grades 9-12) serving the same city.
Chaffey High
Standard public school
3,127 students 22.8:1 students per teacher
Colony High
Standard public school
2,109 students 24.2:1 students per teacher
Ontario High
Standard public school
1,994 students 20.8:1 students per teacher
Valley View High (Continuation)
Alternative education program
370 students 14.8:1 students per teacher
Chaffey Community Day
Alternative education program
20 students 10:1 students per teacher
Nationwide high schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~93 students)
Frequently asked questions about Chaffey District Online High
How many students attend Chaffey District Online High?
Chaffey District Online High has 93 students enrolled. It is a high school in Ontario, CA. CCD year-over-year: 102 (2022-23) → 112 (2023-24), up 10.
What is the student-teacher ratio at Chaffey District Online High?
The student-teacher ratio at Chaffey District Online High is 18.6:1, which is 13% lower than the California average of 21.5:1 and 18% higher than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Chaffey District Online High?
43.1% of students at Chaffey District Online High are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Chaffey District Online High?
The largest demographic group at Chaffey District Online High is Hispanic or Latino at 59.1% of enrollment, in Ontario, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 58.4/100.
What is the Resource Investment Index for Chaffey District Online High?
Chaffey District Online High has a Resource Investment Index of 42/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Chaffey District Online High rank among high schools in Ontario?
By Resource Investment Index, Chaffey District Online High ranks #3 of 6 high schools in Ontario, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Ontario on the city page.
What other schools are in Chaffey Joint Union High?
Besides Chaffey District Online High, Chaffey Joint Union High also operates Etiwanda High (3,446 students), Rancho Cucamonga High (3,221 students), and Chaffey High (3,127 students). See the Chaffey Joint Union High district page for the complete list.