19 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 48601 | Saginaw | 32,069 |
| 48603 | Saginaw | 27,846 |
| 48602 | Saginaw | 27,490 |
| 48623 | Freeland | 15,126 |
| 48638 | Saginaw | 12,668 |
| 48609 | Saginaw | 12,206 |
| 48604 | Saginaw | 11,284 |
| 48415 | Birch Run | 8,601 |
| 48616 | Chesaning | 7,702 |
| 48734 | Frankenmuth | 7,642 |
| 48626 | Hemlock | 5,813 |
| 48655 | Saint Charles | 5,655 |
| 48722 | Bridgeport | 3,147 |
| 48637 | Merrill | 3,068 |
| 48417 | Burt | 2,310 |
| 48607 | Saginaw | 1,523 |
| 48649 | Oakley | 1,476 |
| 48724 | Carrollton | 1,226 |
| 48614 | Brant | 921 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 19 ZCTAs in Saginaw County, Michigan (US Census).