Johnston, IA ZIP Codes
1
Total ZIPs
17,499
Total Population
ZIP Codes in Johnston, IA
| ZIP Code | Population | Density | Timezone |
|---|---|---|---|
| 50131 | 17,499 | 314 | 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.