| Locality | Post Code |
|---|---|
| Aurora, Will | 60503 |
| Ballou, Will | 60481 |
| Beecher, Will | 60401 |
| Bolingbrook, Will | 60440, 60490 |
| Braidwood, Will | 60408 |
| Channahon, Will | 60410 |
| Crest Hill, Will | 60403, 60435 |
| Crete, Will | 60417 |
| Custer Park, Will | 60481 |
| Downtown Joliet, Will | 60432 |
| Eagle Lake, Will | 60401 |
| Elwood, Will | 60421 |
| Frankfort, Will | 60423 |
| Godley, Will | 60407 |
| Goodenow, Will | 60401 |
| Homer Glen, Will | 60441, 60491 |
| Joliet, Will | 60404, 60431, 60432, 60433, 60434, … |
| Lockport, Will | 60441, 60491 |
| Lorenzo, Will | 60481 |
| Manhattan, Will | 60442 |
| Mokena, Will | 60448 |
| Monee, Will | 60449 |
| Naperville, Will | 60564 |
| New Lenox, Will | 60451 |
| Park Forest, Will | 60484 |
| Peotone, Will | 60468 |