| Index | Schleswig | Iowa | National |
| Average Test Scores | 74% | 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 |
| Index | Schleswig | Iowa | National |
| Completed 8th grade | 88.7% | 89.2% | 84.3% |
| Completed high school | 86.5% | 87.7% | 83.0% |
| Completed some college | 47.6% | 59.8% | 59.4% |
| Completed associate degree | 21.6% | 38.4% | 38.5% |
| Completed bachelors | 11.0% | 27.2% | 30.3% |
| Completed masters | 3.0% | 8.7% | 11.5% |
| Completed professional degree | 0.9% | 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 Schleswig. Using the proficiency score averages, the average test scores for Schleswig, IA schools is 74%. The average student to teacher ratio is n/a. In Schleswig, IA, an average of 88.7% of students have completed 8th grade and an average of 86.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Odebolt, IA | 866 | 75% | 56.8% |
| Ida Grove, IA | 1,929 | 70% | 44.8% |
| Denison, IA | 8,319 | 63% | 31.3% |
| Charter Oak, IA | 570 | 59% | 21.9% |
| Schleswig, IA | 979 | 74% | 53.1% |
| City | Population | Avg. Test Scores | National Avg. |
| Beach Haven, NJ | 979 | 50% | 4.2% |
| Selma, IN | 979 | 54% | 11.5% |
| Burnside, KY | 979 | 58% | 19.8% |
| Danvers, IL | 979 | 45% | 7.3% |
| Crawford, TX | 979 | 75% | 55.2% |
| Schleswig, IA | 979 | 74% | 53.1% |
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