Mason City Iowa is covered by a total of 2 ZIP Codes. The ZIP Codes in Mason City range from 50401 to 50402. Of the ZIP codes within or partially within Mason City there are 1 Standard ZIP Codes and 1 PO Box ZIP Codes. The total population of ZIP Codes in Mason City is 28909.
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| ZIP Code | ZIP Code City/Town | ZIP Code Type | |||
|---|---|---|---|---|---|
| Mason City | Standard | |||
| Mason City | PO Box |