| Index | Greenbush | Wisconsin | National |
| Average Test Scores | n/a | 41% | 48% |
| Student/Teacher ratio | n/a | 14:1 | 16:1 |
| Total public schools | n/a | 1,869 | 79,221 |
| Total private schools | n/a | 872 | 24,874 |
| Total post-secondary schools | n/a | 114 | 7,963 |
| Index | Greenbush | Wisconsin | National |
| Completed 8th grade | 87.0% | 89.0% | 84.3% |
| Completed high school | 87.0% | 87.8% | 83.0% |
| Completed some college | 51.1% | 59.7% | 59.4% |
| Completed associate degree | 22.8% | 38.7% | 38.5% |
| Completed bachelors | 16.3% | 28.4% | 30.3% |
| Completed masters | 0.0% | 9.6% | 11.5% |
| Completed professional degree | 0.0% | 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 Greenbush. Using the proficiency score averages, the average test scores for Greenbush, WI schools is n/a. The average student to teacher ratio is n/a. In Greenbush, WI, an average of 87.0% of students have completed 8th grade and an average of 87.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Howards Grove, WI | 3,253 | 52% | 8.7% |
| Cedar Grove, WI | 2,231 | 52% | 8.0% |
| Plymouth, WI | 8,654 | 48% | 0.4% |
| Campbellsport, WI | 1,830 | 47% | 1.3% |
| Eden, WI | 799 | 47% | 2.1% |
| Greenbush, WI | 194 | n/a |
| City | Population | Avg. Test Scores | National Avg. |
| Canadian, OK | 194 | 26% | 45.8% |
| Laurel, IA | 194 | 80% | 66.7% |
| New Paris, PA | 194 | 68% | 40.6% |
| Marble City, OK | 194 | 20% | 58.3% |
| Big Bend, CA | 195 | 50% | 4.2% |
| Greenbush, WI | 194 | n/a |
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