| ZIP Code | ZIP Code City/Town | ZIP Type | Average Adjusted Income(2021) |
|---|
| Blandinsville | Standard | $184,510 |
| La Harpe | Standard | $165,650 |
| Augusta | Standard | $191,300 |
| Basco | Standard | $149,600 |
| Bowen | Standard | $184,260 |
| Carthage | Standard | $470,180 |
| Colchester | Standard | $156,220 |
| Dallas City | Standard | $287,600 |
| Hamilton | Standard | $553,000 |
| Mendon | Standard | $388,230 |
| Nauvoo | Standard | $282,270 |
| Niota | Standard | $161,230 |
| Plymouth | Standard | $151,620 |
| Sutter | Standard | $145,100 |
| Tennessee | Standard | $144,200 |
| Warsaw | Standard | $312,730 |
| West Point | Standard | $166,400 |
Source: US Internal Revenue Service