| Index | Union Gap | Washington | National |
| Average Test Scores | 57% | 54% | 48% |
| Student/Teacher ratio | 49:1 | 20:1 | 16:1 |
| Total public schools | 1 | 1,991 | 79,221 |
| Total private schools | 1 | 548 | 24,874 |
| Total post-secondary schools | n/a | 147 | 7,963 |
| Index | Union Gap | Washington | National |
| Completed 8th grade | 53.4% | 87.5% | 84.3% |
| Completed high school | 50.1% | 86.6% | 83.0% |
| Completed some college | 30.0% | 67.7% | 59.4% |
| Completed associate degree | 12.1% | 43.3% | 38.5% |
| Completed bachelors | 5.3% | 33.6% | 30.3% |
| Completed masters | 1.2% | 12.3% | 11.5% |
| Completed professional degree | 0.3% | 3.6% | 3.3% |
| Completed doctorate | 0.0% | 1.5% | 1.3% |
There are a total of 1 public schools, 1 private schools and n/a post-secondary schools in Union Gap. Using the proficiency score averages, the average test scores for Union Gap, WA schools is 57%. The average student to teacher ratio is 49:1. In Union Gap, WA, an average of 53.4% of students have completed 8th grade and an average of 50.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Moxee, WA | 4,111 | 65% | 35.4% |
| Zillah, WA | 3,137 | 57% | 19.5% |
| Naches, WA | 650 | 53% | 10.8% |
| Yakima, WA | 93,829 | 48% | 0.2% |
| Tieton, WA | 2,053 | 47% | 2.1% |
| Union Gap, WA | 6,167 | 57% | 17.7% |
| City | Population | Avg. Test Scores | National Avg. |
| Dacono, CO | 6,167 | 57% | 18.8% |
| Delano, MN | 6,167 | 80% | 66.7% |
| Nephi, UT | 6,168 | 47% | 1.3% |
| Satsuma, AL | 6,163 | 54% | 12.0% |
| Fort Meade, FL | 6,163 | 45% | 5.7% |
| Union Gap, WA | 6,167 | 57% | 17.7% |
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