Mercer zip code
Zip code in Mercer, IL
The location Mercer belongs to Mercer County, state of Illinois. Mercer has been assigned with the zip code 61231.
The location name Mercer 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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