| Index | Rio Oso | California | National |
| Average Test Scores | 45% | 43% | 48% |
| Student/Teacher ratio | n/a | 20:1 | 16:1 |
| Total public schools | n/a | 8,308 | 79,221 |
| Total private schools | n/a | 3,438 | 24,874 |
| Total post-secondary schools | n/a | 1,085 | 7,963 |
| Index | Rio Oso | California | National |
| Completed 8th grade | 85.1% | 81.1% | 84.3% |
| Completed high school | 82.8% | 79.8% | 83.0% |
| Completed some college | 59.1% | 61.5% | 59.4% |
| Completed associate degree | 33.1% | 39.8% | 38.5% |
| Completed bachelors | 26.0% | 32.0% | 30.3% |
| Completed masters | 7.1% | 11.9% | 11.5% |
| Completed professional degree | 2.0% | 3.9% | 3.3% |
| Completed doctorate | 0.7% | 1.6% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Rio Oso. Using the proficiency score averages, the average test scores for Rio Oso, CA schools is 45%. The average student to teacher ratio is n/a. In Rio Oso, CA, an average of 85.1% of students have completed 8th grade and an average of 82.8% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Robbins, CA | 428 | 57% | 18.8% |
| Roseville, CA | 138,860 | 56% | 17.1% |
| Plumas Lake, CA | 7,687 | 56% | 16.7% |
| Beale AFB, CA | 955 | 51% | 6.3% |
| Lincoln, CA | 48,150 | 51% | 5.6% |
| Rio Oso, CA | 414 | 45% | 7.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Ewing, NE | 414 | 55% | 14.6% |
| Texhoma, TX | 414 | 55% | 14.6% |
| Amber, OK | 414 | 41% | 13.9% |
| Mayetta, KS | 414 | 37% | 22.9% |
| Fairfield, NE | 414 | 57% | 19.3% |
| Rio Oso, CA | 414 | 45% | 7.3% |
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