| Index | Clarks | Nebraska | National |
| Average Test Scores | 48% | 53% | 48% |
| Student/Teacher ratio | n/a | 13:1 | 16:1 |
| Total public schools | n/a | 780 | 79,221 |
| Total private schools | n/a | 182 | 24,874 |
| Total post-secondary schools | n/a | 56 | 7,963 |
| Index | Clarks | Nebraska | National |
| Completed 8th grade | 87.4% | 88.4% | 84.3% |
| Completed high school | 87.0% | 87.2% | 83.0% |
| Completed some college | 57.7% | 63.7% | 59.4% |
| Completed associate degree | 16.3% | 40.1% | 38.5% |
| Completed bachelors | 10.6% | 30.0% | 30.3% |
| Completed masters | 2.8% | 9.9% | 11.5% |
| Completed professional degree | 1.6% | 2.9% | 3.3% |
| Completed doctorate | 0.8% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Clarks. Using the proficiency score averages, the average test scores for Clarks, NE schools is 48%. The average student to teacher ratio is n/a. In Clarks, NE, an average of 87.4% of students have completed 8th grade and an average of 87.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Stromsburg, NE | 1,028 | 63% | 31.3% |
| Fullerton, NE | 1,569 | 57% | 18.8% |
| Silver Creek, NE | 490 | 55% | 14.6% |
| Polk, NE | 319 | 50% | 4.2% |
| Central City, NE | 2,906 | 49% | 1.0% |
| Clarks, NE | 334 | 48% | 1.0% |
| City | Population | Avg. Test Scores | National Avg. |
| Pelham, TN | 334 | 25% | 49.0% |
| Bazine, KS | 334 | 25% | 47.9% |
| Crawfordsville, IA | 334 | 62% | 29.2% |
| Letts, IA | 334 | 72% | 50.7% |
| Adamsville, OH | 334 | 72% | 50.0% |
| Clarks, NE | 334 | 48% | 1.0% |
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