| ZIP Code | ZIP Code City/Town | ZIP Type | Average Adjusted Income(2021) |
|---|
| Battle Creek | Standard | $178,510 |
| Danbury | Standard | $211,340 |
| Mapleton | Standard | $378,170 |
| Ute | Standard | $170,550 |
| Breda | Standard | $404,900 |
| Charter Oak | Standard | $171,170 |
| Deloit | Standard | $104,170 |
| Denison | Standard | $453,440 |
| Kiron | Standard | $186,020 |
| Manilla | Standard | $172,520 |
| Manning | Standard | $492,580 |
| Schleswig | Standard | $387,800 |
| Vail | Standard | $185,740 |
| Westside | Standard | $156,870 |
| Defiance | Standard | $170,130 |
| Dow City | Standard | $179,530 |
| Dunlap | Standard | $576,880 |
| McGregor | Standard | $167,240 |
Source: US Internal Revenue Service