Signal Hill zip code
Zip code in Signal Hill, IL
The location Signal Hill belongs to St. Clair County, state of Illinois. Signal Hill has been assigned with the zip code 62223.
The location name Signal Hill is listed as unacceptable by the US Postal Service so any mailing should avoid it. Instead you can use Belleville, the official name of the location. You can also use any of the following names: Swansea.
| Zip code | Type | Population |
|---|---|---|
| 62223 | STANDARD | 15,220 |
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