| Index | South Milwaukee | Wisconsin | National |
| Income per capita | $25,559 | $27,907 | $28,555 |
| Median household income | $51,499 | $52,738 | $53,482 |
| Median income owner occupied | $67,578 | $67,186 | $68,142 |
| Median income renter occupied | $32,452 | $30,207 | $33,219 |
| Median earnings male | $39,203 | $36,343 | $36,116 |
| Median earnings female | $24,614 | $25,134 | $25,692 |
| Unemployment rate | 6.6% | 4.9% | 5.8% |
| Poverty level | 11.7% | 13.3% | 15.6% |
| Labour Type | Male | Female |
| Construction industry | 9.6% | 0.3% |
| Manufacturing sector | 31.9% | 1.3% |
| Financial & insurance services | 2.3% | 6.6% |
| Wholesale & retail services | 12.1% | 11.7% |
| Public administration | 2.6% | 4.8% |
| Transportation, warehousing & utilities | 10.0% | 4.3% |
| Education, health & social services | 7.9% | 34.3% |
| Other | 21.3% | 23.9% |
| City, State | Population | Household Income | National Avg. |
| Elm Grove, WI | 5,985 | $119,679 | 124% |
| North Bay, WI | 253 | $119,375 | 123% |
| Whitefish Bay, WI | 14,132 | $102,576 | 92% |
| Wind Point, WI | 1,634 | $99,792 | 87% |
| Brookfield, WI | 37,971 | $91,485 | 71% |
| South Milwaukee, WI | 21,210 | $51,499 | 4% |
| City, State | Population | Household Income | National Avg. |
| Haines City, FL | 21,207 | $33,305 | 38% |
| Kiryas Joel, NY | 21,201 | $25,795 | 52% |
| East Ridge, TN | 21,220 | $39,445 | 26% |
| Darien, CT | 21,190 | $199,444 | 273% |
| Waynesboro, VA | 21,177 | $45,499 | 15% |
| South Milwaukee, WI | 21,210 | $51,499 | 4% |