| Index | Clarion | Iowa | National |
| Average Test Scores | 73% | 69% | 48% |
| Student/Teacher ratio | 12:1 | 13:1 | 16:1 |
| Total public schools | 3 | 1,101 | 79,221 |
| Total private schools | n/a | 208 | 24,874 |
| Total post-secondary schools | n/a | 96 | 7,963 |
| Index | Clarion | Iowa | National |
| Completed 8th grade | 83.8% | 89.2% | 84.3% |
| Completed high school | 81.9% | 87.7% | 83.0% |
| Completed some college | 51.9% | 59.8% | 59.4% |
| Completed associate degree | 30.6% | 38.4% | 38.5% |
| Completed bachelors | 18.6% | 27.2% | 30.3% |
| Completed masters | 3.5% | 8.7% | 11.5% |
| Completed professional degree | 1.5% | 2.7% | 3.3% |
| Completed doctorate | 0.2% | 1.1% | 1.3% |
There are a total of 3 public schools, n/a private schools and n/a post-secondary schools in Clarion. Using the proficiency score averages, the average test scores for Clarion, IA schools is 73%. The average student to teacher ratio is 12:1. In Clarion, IA, an average of 83.8% of students have completed 8th grade and an average of 81.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Kanawha, IA | 954 | 80% | 65.6% |
| Belmond, IA | 2,419 | 59% | 22.9% |
| Eagle Grove, IA | 3,410 | 54% | 12.2% |
| Clarion, IA | 2,726 | 73% | 51.0% |
| City | Population | Avg. Test Scores | National Avg. |
| Dayton, OR | 2,726 | 38% | 21.2% |
| Gervais, OR | 2,726 | 42% | 12.3% |
| Cokato, MN | 2,726 | 53% | 10.2% |
| Riverdale, CA | 2,727 | 41% | 14.8% |
| Hoisington, KS | 2,725 | 40% | 17.4% |
| Clarion, IA | 2,726 | 73% | 51.0% |
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