| Index | Del Rio | California | National |
| Average Test Scores | n/a | 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 | Del Rio | California | National |
| Completed 8th grade | 96.4% | 81.1% | 84.3% |
| Completed high school | 96.4% | 79.8% | 83.0% |
| Completed some college | 86.7% | 61.5% | 59.4% |
| Completed associate degree | 57.6% | 39.8% | 38.5% |
| Completed bachelors | 55.9% | 32.0% | 30.3% |
| Completed masters | 23.0% | 11.9% | 11.5% |
| Completed professional degree | 19.5% | 3.9% | 3.3% |
| Completed doctorate | 1.0% | 1.6% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Del Rio. Using the proficiency score averages, the average test scores for Del Rio, CA schools is n/a. The average student to teacher ratio is n/a. In Del Rio, CA, an average of 96.4% of students have completed 8th grade and an average of 96.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Hickman, CA | 779 | 59% | 22.9% |
| Ripon, CA | 16,534 | 56% | 15.8% |
| Keyes, CA | 5,851 | 48% | 0.5% |
| Hughson, CA | 7,730 | 44% | 7.5% |
| Oakdale, CA | 23,805 | 43% | 10.8% |
| Del Rio, CA | 1,266 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Muscoda, WI | 1,266 | 35% | 26.4% |
| Bolinas, CA | 1,265 | 45% | 6.3% |
| Ohkay Owingeh, NM | 1,267 | 15% | 68.8% |
| Clinton, ME | 1,265 | 50% | 3.1% |
| Upton, WY | 1,267 | 45% | 6.3% |
| Del Rio, CA | 1,266 | n/a |
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