| Index | Ontario | Oregon | National |
| Average Test Scores | 36% | 46% | 48% |
| Student/Teacher ratio | 17:1 | 20:1 | 16:1 |
| Total public schools | 9 | 1,097 | 79,221 |
| Total private schools | 2 | 361 | 24,874 |
| Total post-secondary schools | 1 | 89 | 7,963 |
| Index | Ontario | Oregon | National |
| Completed 8th grade | 74.1% | 86.3% | 84.3% |
| Completed high school | 71.4% | 85.4% | 83.0% |
| Completed some college | 50.3% | 66.1% | 59.4% |
| Completed associate degree | 22.6% | 39.9% | 38.5% |
| Completed bachelors | 14.2% | 31.4% | 30.3% |
| Completed masters | 4.7% | 11.9% | 11.5% |
| Completed professional degree | 0.8% | 3.6% | 3.3% |
| Completed doctorate | 0.0% | 1.5% | 1.3% |
There are a total of 9 public schools, 2 private schools and 1 post-secondary schools in Ontario. Using the proficiency score averages, the average test scores for Ontario, OR schools is 36%. The average student to teacher ratio is 17:1. In Ontario, OR, an average of 74.1% of students have completed 8th grade and an average of 71.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Vale, OR | 2,210 | 53% | 10.7% |
| New Plymouth, ID | 1,641 | 52% | 8.0% |
| Fruitland, ID | 5,390 | 49% | 1.8% |
| Nyssa, OR | 3,176 | 39% | 19.1% |
| Payette, ID | 7,655 | 26% | 45.6% |
| Ontario, OR | 11,031 | 36% | 24.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Middle Island, NY | 11,030 | 59% | 23.7% |
| Spencer, IA | 11,038 | 79% | 63.5% |
| Franklin Lakes, NJ | 11,044 | 76% | 57.7% |
| New Baltimore, VA | 11,017 | 86% | 78.1% |
| Picayune, MS | 11,016 | 44% | 8.2% |
| Ontario, OR | 11,031 | 36% | 24.3% |
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