| Index | Clay | Kentucky | National |
| Average Test Scores | 52% | 48% | 48% |
| Student/Teacher ratio | 17:1 | 16:1 | 16:1 |
| Total public schools | 1 | 1,157 | 79,221 |
| Total private schools | n/a | 298 | 24,874 |
| Total post-secondary schools | n/a | 130 | 7,963 |
| Index | Clay | Kentucky | National |
| Completed 8th grade | 80.1% | 81.0% | 84.3% |
| Completed high school | 72.9% | 77.8% | 83.0% |
| Completed some college | 35.2% | 51.3% | 59.4% |
| Completed associate degree | 19.6% | 30.5% | 38.5% |
| Completed bachelors | 7.0% | 22.7% | 30.3% |
| Completed masters | 3.3% | 9.3% | 11.5% |
| Completed professional degree | 0.7% | 2.6% | 3.3% |
| Completed doctorate | 0.4% | 0.9% | 1.3% |
There are a total of 1 public schools, n/a private schools and n/a post-secondary schools in Clay. Using the proficiency score averages, the average test scores for Clay, KY schools is 52%. The average student to teacher ratio is 17:1. In Clay, KY, an average of 80.1% of students have completed 8th grade and an average of 72.9% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Nebo, KY | 162 | 54% | 11.5% |
| Sturgis, KY | 1,654 | 52% | 8.3% |
| Providence, KY | 3,006 | 47% | 2.1% |
| Marion, KY | 2,885 | 45% | 6.3% |
| Dixon, KY | 1,178 | 44% | 7.6% |
| Clay, KY | 1,242 | 52% | 8.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Laupahoehoe, HI | 1,242 | 30% | 38.5% |
| Arapahoe, NE | 1,242 | 48% | 0.5% |
| Ladd, IL | 1,242 | 30% | 38.5% |
| Bayboro, NC | 1,242 | 39% | 18.4% |
| Willow Creek, CA | 1,241 | 25% | 49.0% |
| Clay, KY | 1,242 | 52% | 8.3% |
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