Chaffey Joint Union High

Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. District totals are aggregated directly from the schools reporting under this district in the source records. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.

Ontario, California - 11 schools

An equity score of 49/100 ranks Chaffey Joint Union High #778 of 1517 districts in California (state average 50). Derived live from how evenly resources are distributed across the district's schools.

At $15,404 per pupil, Chaffey Joint Union High ranks #876 of 1862 California districts by per-pupil spending (California districts). NCES F-33 finance data.

23,145
Total Enrollment
11
Schools
$15,404
Per-Pupil Spending
High
School Types

District-Level NCES Analysis

Chaffey Joint Union High operates 11 public schools serving 23,145 students, placing it among the smaller districts in California. The school portfolio breaks down into 11 high schools, a compact enough portfolio that families can compare every campus directly before they move, rent, or enrol. These enrollment and school figures come from the NCES Common Core of Data (CCD) 2024-25 release, and the district is based in San Bernardino County.

Per-pupil expenditure runs $15,404 according to the NCES F-33 School District Finance Survey, in the upper half of 1862 California districts by per-pupil spending. See how California compares in our national per-pupil spending analysis. The funding mix is 35.9% local, 52.9% state, and 11.2% federal, a state-revenue-heavy mix that insulates the district somewhat from local property-tax volatility, though it ties funding to state budget cycles. The district's equity score is 49/100, ranked #778 of 1517 in California against a state average of 50, in line with the typical spread seen across the state for how evenly funding reaches its schools.

Academic infrastructure includes 8 of 11 schools offering Advanced Placement (109 AP courses district-wide), a 333:1 student-counselor ratio, well above the ASCA benchmark though still under the roughly 408:1 national average, and 41.3% chronic absenteeism from the 2021-22 Civil Rights Data Collection. Demographically, the student body averages 67.9% Hispanic or Latino, 11.9% White, 8.3% African American across the district's schools. Its most demographically mixed campus is Rancho Cucamonga High, with a diversity index of 72.6/100.

Its largest campus is Etiwanda High, enrolling 3,446 students (16% of the district's total enrollment). Its smallest is Chaffey Community Day, at 20 students, a 172x enrollment spread across the district's campuses.

Chaffey Joint Union High school enrollment varies 172× across entities

Chaffey Joint Union High school enrollment ranges from 20 students (lowest) to 3,446 students (highest), a spread of 3,426 students. That ratio is an extreme outlier spread — among the widest gaps observed anywhere in this dataset. Per-school staffing ratios, programme availability, and capital-renovation cycles often diverge inside the same district based on enrollment shape.

Source: NCES Common Core of Data NCES Common Core of Data

Chaffey Joint Union High has higher-than-average Title I eligibility — 54.6% of the population qualifies for free or reduced-price lunch

free or reduced-price lunch eligibility is the federal threshold for Title I funding allocations, established under the Every Student Succeeds Act (ESSA, 2015). Areas above 75% eligibility receive concentration grants on top of the basic Title I formula. Regions with eligibility this high typically draw a substantially larger federal funding share relative to their local tax base, which can either offset or reinforce existing gaps depending on allocation policy.

Source: ESSA Title I Part A; ED EDFacts file system ESSA Title I Part A; ED EDFacts file system

Chaffey Joint Union High student-counselor ratio is 333:1 — near the typical range (US average ~408) — within the typical range for U.S. public districts

student-counselor ratio is the simplest comparative metric but it does not capture the full picture: the ratio counts FTE counselors against total enrollment, districts that contract intervention or social-emotional staff outside the counselor classification may be under-counted Variation between sub-units within Chaffey Joint Union High is typically wider than the Chaffey Joint Union High-aggregate figure suggests.

Source: NCES Civil Rights Data Collection NCES Civil Rights Data Collection

Chaffey Joint Union High chronic absenteeism rate is 41.3% — high (typically associated with higher-than-average disruption; recent CRDC data showed elevated rates persisting after pandemic-era schooling changes)

chronic absenteeism rate is the simplest comparative metric but it does not capture the full picture: a student is chronically absent if they miss ≥10% of enrolled days for any reason, illness, family obligations, or disengagement Higher values may reflect larger urban scale or recent resource constraints that have widened the gap.

Source: NCES Civil Rights Data Collection 2021-22 NCES Civil Rights Data Collection 2021-22

Where does the funding come from?

11.2%
Federal
52.9%
State
35.9%
Local

Funding Equity

49
Equity Score
778 / 1517
State Rank
50
State Average

This district has moderate funding equity. There may be room to improve funding diversity or resource allocation.

Student Demographics

Average demographic composition across 11 schools in Chaffey Joint Union High.

White 11.9%
Hispanic or Latino 67.9%
African American 8.3%
Asian 7.8%
Multiracial 3.4%
Other 0.7%

Source: NCES CCD School Membership 2024-25.

Student-body diversity

Average diversity index 46.5/100

Average Simpson diversity index across Chaffey Joint Union High's schools, about the same as the California average of 46.0.

Most mixed schools

  1. 1 Rancho Cucamonga High 72.6
  2. 2 Los Osos High 71.0
  3. 3 Etiwanda High 66.9
  4. 4 Chaffey District Online High 58.4
  5. 5 Alta Loma High 57.5

Programs & Resources

8 / 11
Schools with AP
109 AP courses total
333:1
Student-Counselor Ratio
41.3%
Chronically Absent

Source: NCES Civil Rights Data Collection (CRDC) 2021-22.

Schools in Chaffey Joint Union High

School Enrollment
Etiwanda High
3,446
Rancho Cucamonga High
3,221
Chaffey High
3,127
Los Osos High
2,759
Montclair High
2,515
Alta Loma High
2,386
Colony High
2,109
Ontario High
1,994
Valley View High (Continuation)
370
Chaffey District Online High
93
Chaffey Community Day
20

How Chaffey Joint Union High Compares to Similar-Size Districts

The California districts closest to this one in total enrollment.

District Enrollment Spending Funding Mix
Placentia-Yorba Linda Unified Similar size Similar spending More locally funded
Hesperia Unified Similar size Similar spending Less locally funded
Saddleback Valley Unified Similar size Similar spending More locally funded
Hemet Unified Similar size Similar spending Less locally funded
Murrieta Valley Unified Similar size Similar spending Similar funding mix

Comparisons are relative to Chaffey Joint Union High's own figures; each column derives from NCES Common Core of Data and the F-33 Finance Survey.

Nearby Districts in California

Top districts in the same state, compare side-by-side for enrollment, spending, and demographics.

Los Angeles Unified
427,795 students · 785 schools · $21,940/pupil
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San Diego Unified
93,893 students · 175 schools · $18,665/pupil
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Fresno Unified
69,668 students · 101 schools · $18,783/pupil
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Long Beach Unified
65,554 students · 84 schools · $16,028/pupil
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Elk Grove Unified
62,061 students · 67 schools · $14,134/pupil
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Compare Chaffey Joint Union High

See how this district compares to others in enrollment, spending, demographics, and academic resources.

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Frequently Asked Questions

How many schools are in Chaffey Joint Union High?

Chaffey Joint Union High has 11 schools, including 11 high. Total enrollment is 23,145 students.

How much does Chaffey Joint Union High spend per student?

Chaffey Joint Union High spends $15,404 per student. The district has an equity score of 49/100, ranking #778 in California.

What is the demographic composition of Chaffey Joint Union High?

Chaffey Joint Union High students are 67.9% Hispanic or Latino, 11.9% White, 8.3% African American, 7.8% Asian, averaged across 11 schools. Source: NCES CCD Membership 2024-25.

What is the equity score for Chaffey Joint Union High?

Chaffey Joint Union High has an equity score of 49/100, ranking #778 out of 1517 districts in California.