| Index | Roy | Washington | National |
| Average Test Scores | 47% | 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 | Roy | Washington | National |
| Completed 8th grade | 88.7% | 87.5% | 84.3% |
| Completed high school | 87.1% | 86.6% | 83.0% |
| Completed some college | 70.2% | 67.7% | 59.4% |
| Completed associate degree | 33.6% | 43.3% | 38.5% |
| Completed bachelors | 23.5% | 33.6% | 30.3% |
| Completed masters | 9.5% | 12.3% | 11.5% |
| Completed professional degree | 0.7% | 3.6% | 3.3% |
| Completed doctorate | 0.2% | 1.5% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Roy. Using the proficiency score averages, the average test scores for Roy, WA schools is 47%. The average student to teacher ratio is n/a. In Roy, WA, an average of 88.7% of students have completed 8th grade and an average of 87.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Clear Lake, WA | 1,101 | 75% | 55.2% |
| Steilacoom, WA | 6,366 | 65% | 35.7% |
| North Fort Lewis, WA | 6,402 | 63% | 31.8% |
| McKenna, WA | 623 | 61% | 27.1% |
| DuPont, WA | 9,514 | 61% | 26.0% |
| Roy, WA | 814 | 47% | 2.1% |
| City | Population | Avg. Test Scores | National Avg. |
| Adair, IA | 814 | 81% | 68.2% |
| Keysville, VA | 814 | 92% | 91.7% |
| Ravensdale, WA | 814 | 72% | 49.0% |
| Science Hill, KY | 814 | 64% | 32.3% |
| Poestenkill, NY | 814 | 65% | 34.4% |
| Roy, WA | 814 | 47% | 2.1% |
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