| 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 | 3,137 | 57% | 19.5% |
| Grandview, WA | 11,075 | 45% | 6.9% |
| Prosser, WA | 6,288 | 42% | 12.2% |
| Outlook, WA | 158 | 35% | 27.1% |
| Granger, WA | 3,806 | 35% | 27.8% |
| Sunnyside, WA | 16,703 | 45% | 6.4% |
| City | Population | Avg. Test Scores | National Avg. |
| Highland Village, TX | 16,701 | 67% | 39.8% |
| Farmingville, NY | 16,705 | 63% | 30.2% |
| Cohoes, NY | 16,708 | 52% | 8.5% |
| Opelousas, LA | 16,687 | 59% | 23.3% |
| Pendleton, OR | 16,685 | 44% | 8.6% |
| Sunnyside, WA | 16,703 | 45% | 6.4% |
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