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USPS city
Iona, SD ZIP codes
1 ZIP code that list Iona as a USPS primary or acceptable city. Not a Census place.
Sum of ZCTA populations for ZIP codes intersecting Iona. Not a Census place total. Methodology
Combined population of ZIP/ZCTAs that list this USPS city as a primary or acceptable name. This is a labeled ZIP-sum, never a Census place ACS population. Methodology
ZIP codes associated with Iona
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 57533 | Gregory | Gregory County | 1,633 | $50,000 |