| Index | Clarendon | Arkansas | National |
| Average Test Scores | 20% | 45% | 48% |
| Student/Teacher ratio | 12:1 | 14:1 | 16:1 |
| Total public schools | 2 | 860 | 79,221 |
| Total private schools | n/a | 165 | 24,874 |
| Total post-secondary schools | n/a | 98 | 7,963 |


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| Index | Clarendon | Arkansas | National |
| Completed 8th grade | 68.1% | 80.7% | 84.3% |
| Completed high school | 65.7% | 79.0% | 83.0% |
| Completed some college | 33.4% | 50.5% | 59.4% |
| Completed associate degree | 10.8% | 27.9% | 38.5% |
| Completed bachelors | 7.7% | 21.5% | 30.3% |
| Completed masters | 0.6% | 7.6% | 11.5% |
| Completed professional degree | 0.0% | 2.2% | 3.3% |
| Completed doctorate | 0.0% | 0.9% | 1.3% |
There are a total of 2 public schools, n/a private schools and n/a post-secondary schools in Clarendon. Using the proficiency score averages, the average test scores for Clarendon, AR schools is 20%. The average student to teacher ratio is 12:1. In Clarendon, AR, an average of 68.1% of students have completed 8th grade and an average of 65.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Hazen, AR | 1,792 | 37% | 22.4% |
| Stuttgart, AR | 8,933 | 37% | 23.7% |
| Brinkley, AR | 2,757 | 26% | 46.4% |
| Clarendon, AR | 1,508 | 20% | 59.4% |
| City | Population | Avg. Test Scores | National Avg. |
| Urbana, IA | 1,508 | 82% | 70.8% |
| Averill Park, NY | 1,508 | 74% | 53.8% |
| Bremen, OH | 1,507 | 80% | 65.6% |
| Granville, IL | 1,507 | 30% | 38.5% |
| Orfordville, WI | 1,507 | 38% | 20.5% |
| Clarendon, AR | 1,508 | 20% | 59.4% |