| Index | South Milwaukee | Wisconsin | National |
| Average Test Scores | 38% | 41% | 48% |
| Student/Teacher ratio | 16:1 | 14:1 | 16:1 |
| Total public schools | 6 | 1,869 | 79,221 |
| Total private schools | 5 | 872 | 24,874 |
| Total post-secondary schools | n/a | 114 | 7,963 |
| Index | South Milwaukee | Wisconsin | National |
| Completed 8th grade | 87.5% | 89.0% | 84.3% |
| Completed high school | 86.5% | 87.8% | 83.0% |
| Completed some college | 54.8% | 59.7% | 59.4% |
| Completed associate degree | 31.5% | 38.7% | 38.5% |
| Completed bachelors | 20.5% | 28.4% | 30.3% |
| Completed masters | 6.0% | 9.6% | 11.5% |
| Completed professional degree | 0.9% | 2.7% | 3.3% |
| Completed doctorate | 0.3% | 1.1% | 1.3% |
There are a total of 6 public schools, 5 private schools and n/a post-secondary schools in South Milwaukee. Using the proficiency score averages, the average test scores for South Milwaukee, WI schools is 38%. The average student to teacher ratio is 16:1. In South Milwaukee, WI, an average of 87.5% of students have completed 8th grade and an average of 86.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Elm Grove, WI | 6,156 | 69% | 44.3% |
| Whitefish Bay, WI | 13,890 | 67% | 38.8% |
| Muskego, WI | 25,077 | 66% | 38.1% |
| Brookfield, WI | 38,626 | 65% | 35.4% |
| Franklin, WI | 36,013 | 62% | 29.8% |
| South Milwaukee, WI | 20,857 | 38% | 21.2% |
| City | Population | Avg. Test Scores | National Avg. |
| Green Valley, AZ | 20,857 | 37% | 22.9% |
| Hays, KS | 20,855 | 44% | 9.0% |
| Dickinson, TX | 20,870 | 47% | 2.5% |
| Stephenville, TX | 20,887 | 47% | 3.1% |
| Lynn Haven, FL | 20,910 | 63% | 31.9% |
| South Milwaukee, WI | 20,857 | 38% | 21.2% |
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