10 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 36732 | Demopolis | 8,387 |
| 36742 | Gallion | 2,656 |
| 36748 | Linden | 2,522 |
| 36782 | Sweet Water | 1,850 |
| 36736 | Dixons Mills | 1,559 |
| 36738 | Faunsdale | 747 |
| 36783 | Thomaston | 671 |
| 36754 | Magnolia | 287 |
| 36763 | Myrtlewood | 116 |
| 36764 | Nanafalia | 0 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 10 ZCTAs in Marengo County, Alabama (US Census).