Royal Lake zip code
Zip code in Royal Lake, IL
The location Royal Lake belongs to Clinton County, state of Illinois. Royal Lake has been assigned with the zip code 62231.
The location name Royal Lake is listed as unacceptable by the US Postal Service so any mailing should avoid it. Instead you can use Carlyle, the official name of the location. You can also use any of the following names: Boulder, Ferrin, Posey, Shattuc.
| Zip code | Type | Population |
|---|---|---|
| 62231 | STANDARD | 6,430 |
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