| Index | Cathlamet | Washington | National |
| Average Test Scores | 53% | 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 | Cathlamet | Washington | National |
| Completed 8th grade | 82.7% | 87.5% | 84.3% |
| Completed high school | 82.2% | 86.6% | 83.0% |
| Completed some college | 59.4% | 67.7% | 59.4% |
| Completed associate degree | 22.3% | 43.3% | 38.5% |
| Completed bachelors | 14.4% | 33.6% | 30.3% |
| Completed masters | 4.5% | 12.3% | 11.5% |
| Completed professional degree | 0.5% | 3.6% | 3.3% |
| Completed doctorate | 0.5% | 1.5% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Cathlamet. Using the proficiency score averages, the average test scores for Cathlamet, WA schools is 53%. The average student to teacher ratio is n/a. In Cathlamet, WA, an average of 82.7% of students have completed 8th grade and an average of 82.2% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Clatskanie, OR | 2,249 | 28% | 41.1% |
| Cathlamet, WA | 620 | 53% | 9.9% |
| City | Population | Avg. Test Scores | National Avg. |
| Collins, GA | 620 | 42% | 12.5% |
| Shoshoni, WY | 620 | 48% | = 100 |
| Cuyahoga Heights, OH | 620 | 86% | 79.9% |
| Hoyt, KS | 620 | 35% | 28.1% |
| Allensworth, CA | 620 | 15% | 68.8% |
| Cathlamet, WA | 620 | 53% | 9.9% |