30 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 60440 | Bolingbrook | 52,074 |
| 60435 | Joliet | 48,521 |
| 60586 | Plainfield | 48,006 |
| 60564 | Naperville | 47,243 |
| 60446 | Romeoville | 41,933 |
| 60451 | New Lenox | 37,481 |
| 60441 | Lockport | 36,841 |
| 60423 | Frankfort | 32,813 |
| 60544 | Plainfield | 27,937 |
| 60431 | Joliet | 26,789 |
| 60585 | Plainfield | 24,948 |
| 60448 | Mokena | 24,630 |
| 60491 | Homer Glen | 22,585 |
| 60490 | Bolingbrook | 21,739 |
| 60432 | Joliet | 20,098 |
| 60404 | Shorewood | 20,052 |
| 60436 | Joliet | 19,446 |
| 60403 | Crest Hill | 17,226 |
| 60503 | Aurora | 16,879 |
| 60417 | Crete | 15,408 |
| 60433 | Joliet | 15,293 |
| 60410 | Channahon | 14,027 |
| 60442 | Manhattan | 13,467 |
| 60481 | Wilmington | 11,277 |
| 60449 | Monee | 9,607 |
| 60401 | Beecher | 7,581 |
| 60484 | University Park | 6,612 |
| 60468 | Peotone | 5,848 |
| 60408 | Braidwood | 5,332 |
| 60421 | Elwood | 3,786 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 30 ZCTAs in Will County, Illinois (US Census).