| 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 | 513 | 65% | 34.4% |
| Discovery Bay, CA | 16,286 | 54% | 11.5% |
| Brentwood, CA | 65,405 | 48% | 0.9% |
| Byron, CA | 2,113 | 47% | 2.1% |
| Knightsen, CA | 1,141 | 37% | 24.0% |
| Bethel Island, CA | 2,055 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Emporium, PA | 2,055 | 57% | 18.8% |
| Lenox, MA | 2,054 | 69% | 43.8% |
| Raymond, MS | 2,056 | 35% | 27.9% |
| Hollandale, MS | 2,053 | 23% | 51.6% |
| Berwick, ME | 2,058 | 49% | 1.6% |
| Bethel Island, CA | 2,055 | n/a |
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