| Index | Hartline | Washington | National |
| Average Test Scores | n/a | 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 | Hartline | Washington | National |
| Completed 8th grade | 77.6% | 87.5% | 84.3% |
| Completed high school | 75.7% | 86.6% | 83.0% |
| Completed some college | 55.1% | 67.7% | 59.4% |
| Completed associate degree | 32.7% | 43.3% | 38.5% |
| Completed bachelors | 12.1% | 33.6% | 30.3% |
| Completed masters | 0.9% | 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 Hartline. Using the proficiency score averages, the average test scores for Hartline, WA schools is n/a. The average student to teacher ratio is n/a. In Hartline, WA, an average of 77.6% of students have completed 8th grade and an average of 75.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Almira, WA | 267 | 70% | 44.8% |
| Coulee City, WA | 579 | 63% | 30.2% |
| Hartline, WA | 182 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Green Mountain, IA | 182 | 75% | 55.2% |
| Kelly, WY | 183 | 70% | 45.8% |
| Castleford, ID | 181 | 32% | 33.3% |
| Carpenter, WY | 181 | 50% | 4.2% |
| Washta, IA | 183 | 67% | 39.6% |
| Hartline, WA | 182 | n/a |
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