| ZIP Code | ZIP Code City/Town | ZIP Type | Average Adjusted Income(2020) |
|---|
| Beecher | Standard | $70,430 |
| Crest Hill | Standard | $51,980 |
| Shorewood | Standard | $91,500 |
| Braceville | Standard | $54,170 |
| Braidwood | Standard | $62,120 |
| Channahon | Standard | $81,860 |
| Crete | Standard | $72,280 |
| Elwood | Standard | $70,350 |
| Frankfort | Standard | $123,030 |
| Joliet | Standard | $70,210 |
| Joliet | Standard | $40,940 |
| Joliet | Standard | $40,110 |
| Joliet | Standard | $53,210 |
| Joliet | Standard | $42,110 |
| Bolingbrook | Standard | $57,410 |
| Lockport | Standard | $76,190 |
| Manhattan | Standard | $90,110 |
| Romeoville | Standard | $55,670 |
| Minooka | Standard | $77,900 |
| Mokena | Standard | $108,470 |
| Monee | Standard | $81,770 |
| New Lenox | Standard | $95,490 |
| Park Forest | Standard | $41,890 |
| Orland Park | Standard | $119,710 |
| Peotone | Standard | $73,200 |
| Richton Park | Standard | $48,440 |
| Steger | Standard | $46,020 |
| Tinley Park | Standard | $70,420 |
| Wilmington | Standard | $69,900 |
| University Park | Standard | $39,770 |
| Tinley Park | Standard | $86,090 |
| Bolingbrook | Standard | $92,860 |
| Homer Glen | Standard | $107,390 |
| Aurora | Standard | $91,100 |
| Woodridge | Standard | $81,740 |
| Oswego | Standard | $84,660 |
| Plainfield | Standard | $75,900 |
| Naperville | Standard | $158,020 |
| Naperville | Standard | $139,470 |
| Plainfield | Standard | $110,460 |
| Plainfield | Standard | $71,480 |
| Grant Park | Standard | $69,680 |
| Manteno | Standard | $67,150 |
Source: US Internal Revenue Service