8 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 60450 | Morris | 20,783 |
| 60416 | Coal City | 9,550 |
| 60424 | Gardner | 2,153 |
| 60444 | Mazon | 1,901 |
| 60407 | Braceville | 1,812 |
| 60479 | Verona | 671 |
| 60474 | South Wilmington | 663 |
| 60437 | Kinsman | 117 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 8 ZCTAs in Grundy County, Illinois (US Census).