| Index | Janesville | Minnesota | National |
| Average Test Scores | 50% | 52% | 48% |
| Student/Teacher ratio | 14:1 | 16:1 | 16:1 |
| Total public schools | 3 | 2,224 | 79,221 |
| Total private schools | 1 | 477 | 24,874 |
| Total post-secondary schools | n/a | 140 | 7,963 |
| Index | Janesville | Minnesota | National |
| Completed 8th grade | 93.6% | 90.5% | 84.3% |
| Completed high school | 91.4% | 89.5% | 83.0% |
| Completed some college | 57.9% | 66.9% | 59.4% |
| Completed associate degree | 37.1% | 45.2% | 38.5% |
| Completed bachelors | 23.5% | 34.2% | 30.3% |
| Completed masters | 6.3% | 11.5% | 11.5% |
| Completed professional degree | 2.0% | 3.5% | 3.3% |
| Completed doctorate | 1.3% | 1.4% | 1.3% |
There are a total of 3 public schools, 1 private schools and n/a post-secondary schools in Janesville. Using the proficiency score averages, the average test scores for Janesville, MN schools is 50%. The average student to teacher ratio is 14:1. In Janesville, MN, an average of 93.6% of students have completed 8th grade and an average of 91.4% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Eagle Lake, MN | 3,064 | 71% | 47.9% |
| Waterville, MN | 1,841 | 69% | 42.7% |
| Cleveland, MN | 792 | 61% | 26.6% |
| St. Clair, MN | 764 | 60% | 24.5% |
| Morristown, MN | 959 | 60% | 24.0% |
| Janesville, MN | 2,502 | 50% | 3.1% |
| City | Population | Avg. Test Scores | National Avg. |
| Twain Harte, CA | 2,502 | 47% | 2.1% |
| Lineville, AL | 2,501 | 37% | 22.9% |
| Frankfort, NY | 2,503 | 53% | 10.4% |
| Poydras, LA | 2,506 | 73% | 51.6% |
| Leachville, AR | 2,498 | 58% | 20.8% |
| Janesville, MN | 2,502 | 50% | 3.1% |
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