| Index | Oskaloosa | Iowa | National |
| Average Test Scores | 64% | 69% | 48% |
| Student/Teacher ratio | 16:1 | 13:1 | 16:1 |
| Total public schools | 8 | 1,101 | 79,221 |
| Total private schools | 1 | 208 | 24,874 |
| Total post-secondary schools | 1 | 96 | 7,963 |
| Index | Oskaloosa | Iowa | National |
| Completed 8th grade | 86.6% | 89.2% | 84.3% |
| Completed high school | 85.1% | 87.7% | 83.0% |
| Completed some college | 56.9% | 59.8% | 59.4% |
| Completed associate degree | 33.1% | 38.4% | 38.5% |
| Completed bachelors | 24.9% | 27.2% | 30.3% |
| Completed masters | 7.0% | 8.7% | 11.5% |
| Completed professional degree | 2.2% | 2.7% | 3.3% |
| Completed doctorate | 0.8% | 1.1% | 1.3% |
There are a total of 8 public schools, 1 private schools and 1 post-secondary schools in Oskaloosa. Using the proficiency score averages, the average test scores for Oskaloosa, IA schools is 64%. The average student to teacher ratio is 16:1. In Oskaloosa, IA, an average of 86.6% of students have completed 8th grade and an average of 85.1% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Pella, IA | 10,279 | 84% | 75.6% |
| New Sharon, IA | 1,187 | 72% | 50.0% |
| Eddyville, IA | 1,142 | 65% | 34.9% |
| Bussey, IA | 440 | 55% | 13.5% |
| Fremont, IA | 804 | 50% | 4.2% |
| Oskaloosa, IA | 11,727 | 64% | 32.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Evanston, WY | 11,727 | 52% | 7.4% |
| Webster, MA | 11,719 | 29% | 39.6% |
| Florham Park, NJ | 11,719 | 74% | 53.6% |
| Wanaque, NJ | 11,719 | 62% | 28.5% |
| Grafton, WI | 11,718 | 61% | 27.6% |
| Oskaloosa, IA | 11,727 | 64% | 32.3% |
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