Hardin zip code

Zip code in Hardin, IA

The location Hardin belongs to Clayton County, state of Iowa. Hardin has been assigned with the zip code 52156.

The location name Hardin is listed as unacceptable by the US Postal Service so any mailing should avoid it. Instead you can use Luana, the official name of the location.

Zip code Type Population
52156 STANDARD 660