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Postal Code for Johnston, Iowa

The postal code for Johnston, Iowa, United States is 50131. With map location and coordinates.

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The postal code for Johnston, Iowa, United States is 50131:

Postal codePlaceCounty / areaCoordinates
50131JohnstonPolk41.673, -93.703

‹ All postal codes in Iowa

Frequently asked questions

What is the postal code of Johnston?
The postal code of Johnston is 50131.

Why does Johnston have more than one postal code?
Larger towns and cities are split into several postal-code areas, each serving a different neighbourhood, PO-box range or large organisation.