| Index | Bethel Island | 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 | Bethel Island | California | National |
| Completed 8th grade | 86.2% | 81.1% | 84.3% |
| Completed high school | 84.2% | 79.8% | 83.0% |
| Completed some college | 51.0% | 61.5% | 59.4% |
| Completed associate degree | 21.7% | 39.8% | 38.5% |
| Completed bachelors | 13.7% | 32.0% | 30.3% |
| Completed masters | 4.0% | 11.9% | 11.5% |
| Completed professional degree | 2.9% | 3.9% | 3.3% |
| Completed doctorate | 2.9% | 1.6% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Bethel Island. Using the proficiency score averages, the average test scores for Bethel Island, CA schools is n/a. The average student to teacher ratio is n/a. In Bethel Island, CA, an average of 86.2% of students have completed 8th grade and an average of 84.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Isleton, CA | 495 | 65% | 34.4% |
| Discovery Bay, CA | 15,904 | 54% | 11.5% |
| Brentwood, CA | 63,013 | 48% | 0.9% |
| Byron, CA | 2,057 | 47% | 2.1% |
| Knightsen, CA | 1,100 | 37% | 24.0% |
| Bethel Island, CA | 2,015 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Kohler, WI | 2,016 | 70% | 44.8% |
| Rose Hill, NC | 2,014 | 32% | 33.3% |
| Steep Falls, ME | 2,016 | 40% | 16.7% |
| Bottineau, ND | 2,017 | 48% | 0.5% |
| Ortonville, MN | 2,017 | 55% | 13.5% |
| Bethel Island, CA | 2,015 | n/a |
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