| ZIP Code | ZIP Code City/Town | ZIP Type | Average Adjusted Income(2021) |
|---|
| Beecher | Standard | $379,390 |
| Crest Hill | Standard | $280,560 |
| Shorewood | Standard | $346,040 |
| Braceville | Standard | $144,540 |
| Braidwood | Standard | $273,470 |
| Channahon | Standard | $365,310 |
| Crete | Standard | $520,520 |
| Elwood | Standard | $314,500 |
| Frankfort | Standard | $531,650 |
| Joliet | Standard | $393,890 |
| Joliet | Standard | $458,400 |
| Joliet | Standard | $246,900 |
| Joliet | Standard | $324,750 |
| Joliet | Standard | $326,350 |
| Bolingbrook | Standard | $319,180 |
| Lockport | Standard | $322,220 |
| Manhattan | Standard | $387,160 |
| Romeoville | Standard | $291,320 |
| Minooka | Standard | $378,340 |
| Mokena | Standard | $426,900 |
| Monee | Standard | $459,860 |
| New Lenox | Standard | $362,160 |
| Park Forest | Standard | $272,560 |
| Orland Park | Standard | $544,150 |
| Peotone | Standard | $467,050 |
| Richton Park | Standard | $266,960 |
| Steger | Standard | $247,780 |
| Tinley Park | Standard | $333,210 |
| Wilmington | Standard | $396,400 |
| University Park | Standard | $138,260 |
| Tinley Park | Standard | $366,480 |
| Bolingbrook | Standard | $334,600 |
| Homer Glen | Standard | $449,750 |
| Aurora | Standard | $305,880 |
| Woodridge | Standard | $376,790 |
| Oswego | Standard | $345,960 |
| Plainfield | Standard | $341,450 |
| Naperville | Standard | $442,160 |
| Naperville | Standard | $450,950 |
| Plainfield | Standard | $373,600 |
| Plainfield | Standard | $309,400 |
| Grant Park | Standard | $441,480 |
| Manteno | Standard | $315,670 |
Source: US Internal Revenue Service