| Index | Lake Cassidy | 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 | Lake Cassidy | Washington | National |
| Completed 8th grade | 86.8% | 87.5% | 84.3% |
| Completed high school | 86.2% | 86.6% | 83.0% |
| Completed some college | 61.2% | 67.7% | 59.4% |
| Completed associate degree | 38.8% | 43.3% | 38.5% |
| Completed bachelors | 23.9% | 33.6% | 30.3% |
| Completed masters | 7.4% | 12.3% | 11.5% |
| Completed professional degree | 2.2% | 3.6% | 3.3% |
| Completed doctorate | 2.2% | 1.5% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Lake Cassidy. Using the proficiency score averages, the average test scores for Lake Cassidy, WA schools is n/a. The average student to teacher ratio is n/a. In Lake Cassidy, WA, an average of 86.8% of students have completed 8th grade and an average of 86.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Mill Creek, WA | 20,750 | 77% | 60.4% |
| Mukilteo, WA | 21,414 | 69% | 43.6% |
| Lake Stevens, WA | 33,470 | 64% | 32.6% |
| Snohomish, WA | 10,141 | 60% | 25.1% |
| Stanwood, WA | 7,228 | 59% | 23.4% |
| Lake Cassidy, WA | 2,854 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| El Paso, IL | 2,854 | 48% | 0.5% |
| Mountain Iron, MN | 2,854 | 55% | 13.5% |
| Davis, OK | 2,853 | 27% | 43.8% |
| Fayetteville, PA | 2,855 | 64% | 32.3% |
| Clayton, AL | 2,853 | 9% | 82.3% |
| Lake Cassidy, WA | 2,854 | n/a |
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