ZIP code · Johnston · Iowa · United States
ZIP code 50131 — Johnston
ZIP code 50131 serves Johnston, Iowa.
- Postal code
- 50131Single source Value from one source, not cross-checked.
- City
- Johnston
- County
- Polk
- State
- Iowa
- Country
- United States
- Coordinates
- 41.6730, -93.7028 — precision precise (locality)
View on OpenStreetMap
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames. Data generated on 2026-08-21. Methodology · Report an error on this page