| Index | Sumas | Washington | National |
| Average Test Scores | 62% | 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 | Sumas | Washington | National |
| Completed 8th grade | 78.5% | 87.5% | 84.3% |
| Completed high school | 77.3% | 86.6% | 83.0% |
| Completed some college | 50.8% | 67.7% | 59.4% |
| Completed associate degree | 23.4% | 43.3% | 38.5% |
| Completed bachelors | 17.3% | 33.6% | 30.3% |
| Completed masters | 6.4% | 12.3% | 11.5% |
| Completed professional degree | 0.0% | 3.6% | 3.3% |
| Completed doctorate | 0.0% | 1.5% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Sumas. Using the proficiency score averages, the average test scores for Sumas, WA schools is 62%. The average student to teacher ratio is n/a. In Sumas, WA, an average of 78.5% of students have completed 8th grade and an average of 77.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Everson, WA | 2,555 | 57% | 18.1% |
| Lynden, WA | 13,204 | 53% | 10.7% |
| Ferndale, WA | 12,666 | 52% | 7.0% |
| Deming, WA | 246 | 50% | 3.9% |
| Maple Falls, WA | 55 | 40% | 17.9% |
| Sumas, WA | 1,775 | 62% | 28.8% |
| City | Population | Avg. Test Scores | National Avg. |
| Ganado, TX | 1,775 | 42% | 12.7% |
| Cross Plains, TN | 1,776 | 33% | 30.9% |
| West Unity, OH | 1,777 | 66% | 36.6% |
| Contoocook, NH | 1,773 | 68% | 41.7% |
| Denton, NC | 1,773 | 39% | 18.6% |
| Sumas, WA | 1,775 | 62% | 28.8% |
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