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EDITION 2026.08 /8,821 RECORDS / PUBLIC DOMAIN

PublicDataHubOfficial public data, made findable
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School district

Chaffey Joint Union High

Ontario, California

Chaffey Joint Union High runs 11 public schools in California, enrolling 23,145 students — the 323rd largest district in the country.

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At a glance

Schools

11schools

1540th nationally, tied with 212

Enrollment

23,145students

323rd nationally

Schools listed here

11in the directory

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Schools

All 11 schools in the district, largest first.

Enrollment
  1. 1Etiwanda High3,596 students
  2. 2Chaffey High3,346 students
  3. 3Rancho Cucamonga High3,264 students
  4. 4Los Osos High2,837 students
  5. 5Montclair High2,769 students
  6. 6Alta Loma High2,456 students
  7. 7Ontario High2,182 students
  8. 8Colony High2,122 students
  9. 9Valley View High (Continuation)368 students
  10. 10Chaffey District Online High102 students
  11. 11Chaffey Community Day16 students
Schools in Chaffey Joint Union High
SchoolCityEnrollment
Etiwanda HighEtiwanda3,596
Chaffey HighOntario3,346
Rancho Cucamonga HighRancho Cucamonga3,264
Los Osos HighRancho Cucamonga2,837
Montclair HighMontclair2,769
Alta Loma HighAlta Loma2,456
Ontario HighOntario2,182
Colony HighOntario2,122
Valley View High (Continuation)Ontario368
Chaffey District Online HighOntario102
Chaffey Community DayOntario16
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Where this sits

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Sources & licence

Provenance

National Center for Education Statistics
Common Core of Data — school and district directory
Current · as of August 17, 2026U.S. Public Domain (NCES)

Collected and published by NCES; retrieved through the Urban Institute Education Data Portal, which republishes the NCES files unchanged.

Data as of September 1, 2022.