| Place Name | South Milwaukee |
| Place Type | City |
| ZIP Code(s) | 53172 |
| County | Milwaukee County |
| Area Code(s) | 414 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 21,119 |
| Population Growth Rate (2010-19) | -1.71% |
| Majority Ethnicity | White 83.94% |
| Metro/Micro Stats Area | Milwaukee-Waukesha, WI |
| US Congressional District(s) | Wisconsin 4th |
| State Assembly Districts | 21 |
| State Senate Districts | 7 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 83.94% |
| African American | 2.41% |
| Hispanic | 1.28% |
| Asian | 0.41% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 11.96% |