| Index | Clay Center | Nebraska | National |
| Average Test Scores | 65% | 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 | Clay Center | Nebraska | National |
| Completed 8th grade | 90.4% | 88.4% | 84.3% |
| Completed high school | 90.4% | 87.2% | 83.0% |
| Completed some college | 57.0% | 63.7% | 59.4% |
| Completed associate degree | 31.2% | 40.1% | 38.5% |
| Completed bachelors | 16.2% | 30.0% | 30.3% |
| Completed masters | 5.0% | 9.9% | 11.5% |
| Completed professional degree | 0.4% | 2.9% | 3.3% |
| Completed doctorate | 0.4% | 1.2% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Clay Center. Using the proficiency score averages, the average test scores for Clay Center, NE schools is 65%. The average student to teacher ratio is n/a. In Clay Center, NE, an average of 90.4% of students have completed 8th grade and an average of 90.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Davenport, NE | 391 | 60% | 25.0% |
| Fairfield, NE | 414 | 57% | 19.3% |
| Sutton, NE | 1,368 | 56% | 16.1% |
| Harvard, NE | 1,184 | 42% | 13.5% |
| Clay Center, NE | 859 | 65% | 34.4% |
| City | Population | Avg. Test Scores | National Avg. |
| Burgin, KY | 859 | 60% | 24.0% |
| Sedan, KS | 858 | 25% | 49.0% |
| Gaston, IN | 860 | 39% | 18.2% |
| Michie, TN | 860 | 34% | 29.2% |
| Washington, LA | 860 | 62% | 29.2% |
| Clay Center, NE | 859 | 65% | 34.4% |
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