| ZIP Code | ZIP Code City/Town | ZIP Type | Average Adjusted Income(2020) |
|---|
| Arlington | Standard | $53,450 |
| Colesburg | Standard | $54,100 |
| Edgewood | Standard | $61,250 |
| Elkader | Standard | $71,430 |
| Farmersburg | Standard | $56,810 |
| Garber | Standard | $51,330 |
| Garnavillo | Standard | $61,930 |
| Greeley | Standard | $62,120 |
| Guttenberg | Standard | $58,870 |
| Holy Cross | Standard | $59,140 |
| Saint Olaf | Standard | $46,840 |
| Sherrill | Standard | $66,860 |
| Strawberry Point | Standard | $55,350 |
| Volga | Standard | $44,680 |
| Elgin | Standard | $60,970 |
| Luana | Standard | $62,400 |
| McGregor | Standard | $56,380 |
| Monona | Standard | $61,810 |
| Postville | Standard | $47,630 |
| Wadena | Standard | $46,880 |
Source: US Internal Revenue Service