| Index | Sudden Valley | Washington | National |
| Average Test Scores | n/a | 54% | 48% |
| Student/Teacher ratio | n/a | 20:1 | 16:1 |
| Total public schools | n/a | 1,991 | 79,221 |
| Total private schools | n/a | 548 | 24,874 |
| Total post-secondary schools | n/a | 147 | 7,963 |
| Index | Sudden Valley | Washington | National |
| Completed 8th grade | 95.2% | 87.5% | 84.3% |
| Completed high school | 95.2% | 86.6% | 83.0% |
| Completed some college | 80.0% | 67.7% | 59.4% |
| Completed associate degree | 55.7% | 43.3% | 38.5% |
| Completed bachelors | 46.7% | 33.6% | 30.3% |
| Completed masters | 14.5% | 12.3% | 11.5% |
| Completed professional degree | 4.6% | 3.6% | 3.3% |
| Completed doctorate | 3.2% | 1.5% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Sudden Valley. Using the proficiency score averages, the average test scores for Sudden Valley, WA schools is n/a. The average student to teacher ratio is n/a. In Sudden Valley, WA, an average of 95.2% of students have completed 8th grade and an average of 95.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Lyman, WA | 277 | 70% | 44.8% |
| Everson, WA | 2,773 | 58% | 21.5% |
| Edison, WA | 264 | 53% | 9.4% |
| Ferndale, WA | 14,591 | 52% | 7.3% |
| Acme, WA | 123 | 51% | 6.3% |
| Sudden Valley, WA | 7,407 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Woodlake, VA | 7,404 | 88% | 83.9% |
| DuBois, PA | 7,413 | 60% | 24.6% |
| Connellsville, PA | 7,414 | 46% | 4.2% |
| Inverness, FL | 7,399 | 61% | 26.8% |
| Chesterland, OH | 7,415 | 85% | 77.1% |
| Sudden Valley, WA | 7,407 | n/a |
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