| Index | Sunnyside | Washington | National |
| Average Test Scores | 45% | 54% | 48% |
| Student/Teacher ratio | 20:1 | 20:1 | 16:1 |
| Total public schools | 8 | 1,991 | 79,221 |
| Total private schools | 4 | 548 | 24,874 |
| Total post-secondary schools | 2 | 147 | 7,963 |
| Index | Sunnyside | Washington | National |
| Completed 8th grade | 47.9% | 87.5% | 84.3% |
| Completed high school | 44.0% | 86.6% | 83.0% |
| Completed some college | 26.3% | 67.7% | 59.4% |
| Completed associate degree | 13.0% | 43.3% | 38.5% |
| Completed bachelors | 8.1% | 33.6% | 30.3% |
| Completed masters | 4.1% | 12.3% | 11.5% |
| Completed professional degree | 1.2% | 3.6% | 3.3% |
| Completed doctorate | 0.1% | 1.5% | 1.3% |
There are a total of 8 public schools, 4 private schools and 2 post-secondary schools in Sunnyside. Using the proficiency score averages, the average test scores for Sunnyside, WA schools is 45%. The average student to teacher ratio is 20:1. In Sunnyside, WA, an average of 47.9% of students have completed 8th grade and an average of 44.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Zillah, WA | 3,240 | 57% | 19.5% |
| Grandview, WA | 11,346 | 45% | 6.9% |
| Prosser, WA | 6,439 | 42% | 12.2% |
| Outlook, WA | 164 | 35% | 27.1% |
| Granger, WA | 3,910 | 35% | 27.8% |
| Sunnyside, WA | 17,266 | 45% | 6.4% |
| City | Population | Avg. Test Scores | National Avg. |
| Stafford, TX | 17,266 | 44% | 8.3% |
| Knightdale, NC | 17,266 | 27% | 43.3% |
| Mount Vernon, OH | 17,264 | 72% | 49.0% |
| Southbridge Town, MA | 17,257 | 15% | 68.0% |
| Tahlequah, OK | 17,253 | 32% | 33.0% |
| Sunnyside, WA | 17,266 | 45% | 6.4% |
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