Williamsfield zip code
Zip code in Williamsfield, IL
The location Williamsfield belongs to Knox County, state of Illinois. Williamsfield has been assigned with the zip code 61489.
Williamsfield is the official name of the location so if you want to use the US Postal Service you must use that name.
| Zip code | Type | Population |
|---|---|---|
| 61489 | STANDARD | 850 |
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