| Post Office | Marshall |
| Division | Clark |
| Pincode | 62441 |
| Post Office | Casey |
| Division | Clark |
| Pincode | 62420 |
| Post Office | Martinsville |
| Division | Clark |
| Pincode | 62442 |
| Post Office | Westfield |
| Division | Clark |
| Pincode | 62474 |
| Post Office | West Union |
| Division | Clark |
| Pincode | 62477 |
| Post Office | Dennison |
| Division | Clark |
| Pincode | 62423 |
7 City in Clark | List of Zip Codes Location In Illinois and Your selected County Clark
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