Mason City, IA ZIP Codes
1
Total ZIPs
29,837
Total Population
ZIP Codes in Mason City, IA
| ZIP Code | Population | Density | Timezone |
|---|---|---|---|
| 50401 | 29,837 | 77 | America/Chicago |
All data sourced from the U.S. Census Bureau, American Community Survey (ACS) 5-Year Estimates (2023).
PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.