The public schools with the highest student-to-teacher ratios in Ontario, California
35 public schools in Ontario, California appear in this ranking of the public schools with the highest student-to-teacher ratios, ranked by the most students per teacher, a proxy for larger classes. Colony High leads the list at 25.9:1, against a median of 22.5:1 across the ranked schools.
Use the search box to find a specific school within this ranking, sort by any column, or export the full list. Built from NCES and state data for 2024-25.
Highest ratio rankings at a wider scope
Other rankings for Ontario, California
allk12 is independent and not affiliated with, endorsed by, or sponsored by NCES, the US Census Bureau, any state education agency or assessment program, or any other government agency. Source data is compiled from public records and provided "as is," without warranty of accuracy or completeness. You rely on it, and any analysis derived from it, at your own risk. See the full disclaimer.