| Index | Manly | Iowa | National |
| Average Test Scores | 78% | 69% | 48% |
| Student/Teacher ratio | 14:1 | 13:1 | 16:1 |
| Total public schools | 2 | 1,101 | 79,221 |
| Total private schools | n/a | 208 | 24,874 |
| Total post-secondary schools | n/a | 96 | 7,963 |
| Index | Manly | Iowa | National |
| Completed 8th grade | 88.2% | 89.2% | 84.3% |
| Completed high school | 86.3% | 87.7% | 83.0% |
| Completed some college | 54.0% | 59.8% | 59.4% |
| Completed associate degree | 23.1% | 38.4% | 38.5% |
| Completed bachelors | 12.4% | 27.2% | 30.3% |
| Completed masters | 3.0% | 8.7% | 11.5% |
| Completed professional degree | 0.6% | 2.7% | 3.3% |
| Completed doctorate | 0.3% | 1.1% | 1.3% |
There are a total of 2 public schools, n/a private schools and n/a post-secondary schools in Manly. Using the proficiency score averages, the average test scores for Manly, IA schools is 78%. The average student to teacher ratio is 14:1. In Manly, IA, an average of 88.2% of students have completed 8th grade and an average of 86.3% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| St. Ansgar, IA | 1,176 | 81% | 69.4% |
| Ventura, IA | 783 | 74% | 54.2% |
| Clear Lake, IA | 7,775 | 73% | 52.4% |
| Northwood, IA | 2,232 | 67% | 39.6% |
| Nora Springs, IA | 1,692 | 67% | 39.1% |
| Manly, IA | 1,533 | 78% | 61.5% |
| City | Population | Avg. Test Scores | National Avg. |
| Lewiston, CA | 1,533 | 35% | 27.1% |
| Greenwich, OH | 1,533 | 66% | 36.5% |
| Maysville, OK | 1,533 | 35% | 27.6% |
| Double Springs, AL | 1,533 | 42% | 13.2% |
| Wilson, OK | 1,532 | 26% | 46.9% |
| Manly, IA | 1,533 | 78% | 61.5% |
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