| Index | Letts | Iowa | National |
| Average Test Scores | 72% | 69% | 48% |
| Student/Teacher ratio | n/a | 13:1 | 16:1 |
| Total public schools | n/a | 1,101 | 79,221 |
| Total private schools | n/a | 208 | 24,874 |
| Total post-secondary schools | n/a | 96 | 7,963 |
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| Index | Letts | Iowa | National |
| Completed 8th grade | 85.7% | 89.2% | 84.3% |
| Completed high school | 82.1% | 87.7% | 83.0% |
| Completed some college | 46.4% | 59.8% | 59.4% |
| Completed associate degree | 19.0% | 38.4% | 38.5% |
| Completed bachelors | 9.1% | 27.2% | 30.3% |
| Completed masters | 0.8% | 8.7% | 11.5% |
| Completed professional degree | 0.0% | 2.7% | 3.3% |
| Completed doctorate | 0.0% | 1.1% | 1.3% |
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Letts. Using the proficiency score averages, the average test scores for Letts, IA schools is 72%. The average student to teacher ratio is n/a. In Letts, IA, an average of 85.7% of students have completed 8th grade and an average of 82.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Winfield, IA | 1,035 | 66% | 37.0% |
| Muscatine, IA | 23,661 | 62% | 29.9% |
| Lone Tree, IA | 1,390 | 60% | 24.0% |
| Wapello, IA | 1,898 | 56% | 15.6% |
| Columbus Junction, IA | 2,260 | 52% | 8.7% |
| Letts, IA | 334 | 72% | 50.7% |
| City | Population | Avg. Test Scores | National Avg. |
| Clarks, NE | 334 | 48% | 1.0% |
| Pelham, TN | 334 | 25% | 49.0% |
| Crawfordsville, IA | 334 | 62% | 29.2% |
| Bazine, KS | 334 | 25% | 47.9% |
| Adamsville, OH | 334 | 72% | 50.0% |
| Letts, IA | 334 | 72% | 50.7% |
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