| Index | Mattawa | Washington | National |
| Average Test Scores | 23% | 54% | 48% |
| Student/Teacher ratio | 21:1 | 20:1 | 16:1 |
| Total public schools | 5 | 1,991 | 79,221 |
| Total private schools | n/a | 548 | 24,874 |
| Total post-secondary schools | n/a | 147 | 7,963 |
| Index | Mattawa | Washington | National |
| Completed 8th grade | 41.2% | 87.5% | 84.3% |
| Completed high school | 30.6% | 86.6% | 83.0% |
| Completed some college | 12.5% | 67.7% | 59.4% |
| Completed associate degree | 6.1% | 43.3% | 38.5% |
| Completed bachelors | 5.1% | 33.6% | 30.3% |
| Completed masters | 1.0% | 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 5 public schools, n/a private schools and n/a post-secondary schools in Mattawa. Using the proficiency score averages, the average test scores for Mattawa, WA schools is 23%. The average student to teacher ratio is 21:1. In Mattawa, WA, an average of 41.2% of students have completed 8th grade and an average of 30.6% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Royal City, WA | 2,384 | 39% | 19.0% |
| Mattawa, WA | 5,040 | 23% | 52.7% |
| City | Population | Avg. Test Scores | National Avg. |
| Gretna, NE | 5,039 | 70% | 45.6% |
| Rainsville, AL | 5,038 | 45% | 7.3% |
| Maize, KS | 5,044 | 49% | 1.9% |
| Sea Cliff, NY | 5,045 | 92% | 91.7% |
| Crestwood, KY | 5,034 | 65% | 35.4% |
| Mattawa, WA | 5,040 | 23% | 52.7% |
Here are the best places to live in Washington
Check out the 10 most dangerous cities in Washington
Safest States In The US
Check out the 10 safest cities in Washington