| Locality | Post Code |
|---|---|
| Baker, LaSalle | 60531 |
| Brickton, LaSalle | 61350 |
| Cedar Point, LaSalle | 61316 |
| Dana, LaSalle | 61321 |
| Danway, LaSalle | 61341 |
| Dayton, LaSalle | 61350 |
| Dimmick, LaSalle | 61301 |
| Earlville, LaSalle | 60518 |
| Farm Ridge, LaSalle | 61325 |
| Grand Ridge, LaSalle | 61325 |
| Harding, LaSalle | 60518 |
| Jonesville, LaSalle | 61348 |
| Kangley, LaSalle | 61364 |
| Kernan, LaSalle | 61364 |
| La Salle, LaSalle | 61301 |
| Leland, LaSalle | 60531 |
| Leonore, LaSalle | 61332 |
| Lostant, LaSalle | 61334 |
| Lowell, LaSalle | 61370 |
| Marseilles, LaSalle | 61341 |
| Mendota, LaSalle | 61342 |
| Meriden, LaSalle | 61342 |
| Missal, LaSalle | 61364 |
| Mount Palatine, LaSalle | 61334 |
| Munster, LaSalle | 61364 |
| Naplate, LaSalle | 61350 |