| Index | Cardwell | Missouri | National |
| Average Test Scores | 29% | 44% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 1,899 | 79,221 |
| Total private schools | n/a | 531 | 24,874 |
| Total post-secondary schools | n/a | 213 | 7,963 |
| Index | Cardwell | Missouri | National |
| Completed 8th grade | 61.3% | 86.0% | 84.3% |
| Completed high school | 50.5% | 84.2% | 83.0% |
| Completed some college | 27.7% | 57.7% | 59.4% |
| Completed associate degree | 10.8% | 35.2% | 38.5% |
| Completed bachelors | 5.4% | 27.6% | 30.3% |
| Completed masters | 1.0% | 10.4% | 11.5% |
| Completed professional degree | 0.4% | 2.8% | 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 Cardwell. Using the proficiency score averages, the average test scores for Cardwell, MO schools is 29%. The average student to teacher ratio is n/a. In Cardwell, MO, an average of 61.3% of students have completed 8th grade and an average of 50.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Leachville, AR | 2,498 | 58% | 20.8% |
| Manila, AR | 3,340 | 53% | 10.4% |
| Paragould, AR | 28,821 | 46% | 3.3% |
| Kennett, MO | 10,069 | 45% | 6.6% |
| Monette, AR | 1,514 | 43% | 11.5% |
| Cardwell, MO | 830 | 29% | 40.6% |
| City | Population | Avg. Test Scores | National Avg. |
| Hanna, WY | 830 | 51% | 6.3% |
| Stafford, KS | 830 | 28% | 42.7% |
| Loudon, NH | 830 | 55% | 13.5% |
| Shalimar, FL | 830 | 62% | 28.8% |
| Lakeville, CT | 830 | 72% | 50.0% |
| Cardwell, MO | 830 | 29% | 40.6% |
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