Lancaster zip code
Zip code in Lancaster, IA
The location Lancaster belongs to Keokuk County, state of Iowa. Lancaster has been assigned with the zip code 52591.
The location name Lancaster is listed as unacceptable by the US Postal Service so any mailing should avoid it. Instead you can use Sigourney, the official name of the location.
| Zip code | Type | Population |
|---|---|---|
| 52591 | STANDARD | 2,430 |
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