| Index | Clarkton | Missouri | National |
| Average Test Scores | 29% | 44% | 48% |
| Student/Teacher ratio | 9:1 | 14:1 | 16:1 |
| Total public schools | 4 | 1,899 | 79,221 |
| Total private schools | n/a | 531 | 24,874 |
| Total post-secondary schools | n/a | 213 | 7,963 |
| Index | Clarkton | Missouri | National |
| Completed 8th grade | 57.8% | 86.0% | 84.3% |
| Completed high school | 52.9% | 84.2% | 83.0% |
| Completed some college | 22.2% | 57.7% | 59.4% |
| Completed associate degree | 5.7% | 35.2% | 38.5% |
| Completed bachelors | 4.4% | 27.6% | 30.3% |
| Completed masters | 1.5% | 10.4% | 11.5% |
| Completed professional degree | 0.0% | 2.8% | 3.3% |
| Completed doctorate | 0.0% | 1.2% | 1.3% |
There are a total of 4 public schools, n/a private schools and n/a post-secondary schools in Clarkton. Using the proficiency score averages, the average test scores for Clarkton, MO schools is 29%. The average student to teacher ratio is 9:1. In Clarkton, MO, an average of 57.8% of students have completed 8th grade and an average of 52.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Kennett, MO | 10,069 | 45% | 6.6% |
| Campbell, MO | 1,768 | 45% | 7.3% |
| Piggott, AR | 3,579 | 43% | 9.9% |
| Portageville, MO | 2,959 | 42% | 12.2% |
| Risco, MO | 257 | 41% | 14.6% |
| Clarkton, MO | 1,105 | 29% | 39.9% |
| City | Population | Avg. Test Scores | National Avg. |
| Baldwin, MI | 1,105 | 24% | 50.3% |
| Clear Lake, WI | 1,105 | 34% | 29.5% |
| McLouth, KS | 1,106 | 26% | 45.1% |
| Archer, FL | 1,104 | 62% | 28.1% |
| Nashwauk, MN | 1,104 | 47% | 2.1% |
| Clarkton, MO | 1,105 | 29% | 39.9% |
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