Round Knob zip code
Zip code in Round Knob, IL
The location Round Knob belongs to Massac County, state of Illinois. Round Knob has been assigned with the zip code 62960.
The location name Round Knob is listed as unacceptable by the US Postal Service so any mailing should avoid it. Instead you can use Metropolis, the official name of the location.
| Zip code | Type | Population |
|---|---|---|
| 62960 | STANDARD | 8,960 |
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