12 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 52627 | Fort Madison | 12,585 |
| 52632 | Keokuk | 11,904 |
| 52625 | Donnellson | 2,303 |
| 52656 | West Point | 2,099 |
| 52639 | Montrose | 1,626 |
| 52626 | Farmington | 1,151 |
| 52658 | Wever | 906 |
| 52624 | Denmark | 709 |
| 52619 | Argyle | 559 |
| 52630 | Hillsboro | 214 |
| 52631 | Houghton | 76 |
| 52657 | Saint Paul | 68 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 12 ZCTAs in Lee County, Iowa (US Census).