| Index | Greenfield | Wisconsin | National |
| Average Test Scores | 37% | 41% | 48% |
| Student/Teacher ratio | 16:1 | 14:1 | 16:1 |
| Total public schools | 8 | 1,869 | 79,221 |
| Total private schools | 3 | 872 | 24,874 |
| Total post-secondary schools | 3 | 114 | 7,963 |
| Index | Greenfield | Wisconsin | National |
| Completed 8th grade | 90.0% | 89.0% | 84.3% |
| Completed high school | 88.7% | 87.8% | 83.0% |
| Completed some college | 59.5% | 59.7% | 59.4% |
| Completed associate degree | 36.8% | 38.7% | 38.5% |
| Completed bachelors | 28.9% | 28.4% | 30.3% |
| Completed masters | 8.6% | 9.6% | 11.5% |
| Completed professional degree | 1.9% | 2.7% | 3.3% |
| Completed doctorate | 0.8% | 1.1% | 1.3% |
There are a total of 8 public schools, 3 private schools and 3 post-secondary schools in Greenfield. Using the proficiency score averages, the average test scores for Greenfield, WI schools is 37%. The average student to teacher ratio is 16:1. In Greenfield, WI, an average of 90.0% of students have completed 8th grade and an average of 88.7% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Lannon, WI | 1,184 | 75% | 55.2% |
| Elm Grove, WI | 6,156 | 69% | 44.3% |
| Whitefish Bay, WI | 13,890 | 67% | 38.8% |
| Muskego, WI | 25,077 | 66% | 38.1% |
| Sussex, WI | 10,884 | 66% | 37.7% |
| Greenfield, WI | 37,117 | 37% | 22.3% |
| City | Population | Avg. Test Scores | National Avg. |
| Cottage Grove, MN | 37,120 | 58% | 21.7% |
| Mechanicsville, VA | 37,141 | 89% | 84.9% |
| Aventura, FL | 37,151 | 89% | 84.4% |
| Oregon City, OR | 37,057 | 49% | 2.4% |
| Braintree Town, MA | 37,196 | 66% | 38.0% |
| Greenfield, WI | 37,117 | 37% | 22.3% |
Here are the best places to live in Wisconsin
Check out the 10 safest cities in Wisconsin
Most Dangerous States In The US
See the best places to live in Greenfield