| Index | Calmar | Iowa | National |
| Average Test Scores | 80% | 69% | 48% |
| Student/Teacher ratio | 14:1 | 13:1 | 16:1 |
| Total public schools | 1 | 1,101 | 79,221 |
| Total private schools | 1 | 208 | 24,874 |
| Total post-secondary schools | 1 | 96 | 7,963 |
| Index | Calmar | Iowa | National |
| Completed 8th grade | 91.6% | 89.2% | 84.3% |
| Completed high school | 86.5% | 87.7% | 83.0% |
| Completed some college | 57.6% | 59.8% | 59.4% |
| Completed associate degree | 37.0% | 38.4% | 38.5% |
| Completed bachelors | 17.8% | 27.2% | 30.3% |
| Completed masters | 5.8% | 8.7% | 11.5% |
| Completed professional degree | 3.6% | 2.7% | 3.3% |
| Completed doctorate | 0.5% | 1.1% | 1.3% |
There are a total of 1 public schools, 1 private schools and 1 post-secondary schools in Calmar. Using the proficiency score averages, the average test scores for Calmar, IA schools is 80%. The average student to teacher ratio is 14:1. In Calmar, IA, an average of 91.6% of students have completed 8th grade and an average of 86.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Decorah, IA | 7,615 | 81% | 68.5% |
| Ossian, IA | 798 | 75% | 55.2% |
| Cresco, IA | 3,751 | 71% | 47.4% |
| Jackson Junction, IA | 89 | 67% | 39.6% |
| Calmar, IA | 989 | 80% | 66.7% |
| City | Population | Avg. Test Scores | National Avg. |
| Hymera, IN | 989 | 50% | 4.2% |
| Fremont, NC | 990 | 43% | 11.5% |
| Telford, TN | 990 | 41% | 15.6% |
| Medford, OK | 988 | 44% | 9.4% |
| Clay City, KY | 988 | 38% | 21.9% |
| Calmar, IA | 989 | 80% | 66.7% |
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