Old Gilchrist zip code
Zip code in Old Gilchrist, IL
The location Old Gilchrist belongs to Mercer County, state of Illinois. Old Gilchrist has been assigned with the zip code 61231.
The location name Old Gilchrist is listed as unacceptable by the US Postal Service so any mailing should avoid it. Instead you can use Aledo, the official name of the location.
| Zip code | Type | Population |
|---|---|---|
| 61231 | STANDARD | 4,600 |
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