| ZIP Code | ZIP Code City/Town | ZIP Type | Average Adjusted Income(2021) |
|---|
| Cudahy | Standard | $307,950 |
| Greendale | Standard | $397,970 |
| Hales Corners | Standard | $330,780 |
| Franklin | Standard | $449,810 |
| Oak Creek | Standard | $331,230 |
| South Milwaukee | Standard | $295,960 |
| Milwaukee | Standard | $1,001,710 |
| Milwaukee | Standard | $480,190 |
| Milwaukee | Standard | $872,220 |
| Milwaukee | Standard | $148,300 |
| Milwaukee | Standard | $136,370 |
| Milwaukee | Standard | $339,900 |
| Milwaukee | Standard | $362,920 |
| Milwaukee | Standard | $384,810 |
| Milwaukee | Standard | $318,960 |
| Milwaukee | Standard | $605,870 |
| Milwaukee | Standard | $431,000 |
| Milwaukee | Standard | $445,790 |
| Milwaukee | Standard | $336,190 |
| Milwaukee | Standard | $302,010 |
| Milwaukee | Standard | $246,700 |
| Milwaukee | Standard | $781,680 |
| Milwaukee | Standard | $265,470 |
| Milwaukee | Standard | $293,030 |
| Milwaukee | Standard | $306,100 |
| Milwaukee | Standard | $339,050 |
| Milwaukee | Standard | $327,160 |
| Milwaukee | Standard | $352,960 |
| Milwaukee | Standard | $297,070 |
| Milwaukee | Standard | $291,480 |
| Milwaukee | Standard | $387,590 |
| Milwaukee | Standard | $441,440 |
| Milwaukee | Standard | $346,010 |
| Milwaukee | Standard | $188,480 |
| Saint Francis | Standard | $360,850 |
Source: US Internal Revenue Service