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Home Countries Continents

Stay Updated

Get the latest postal code updates, new tools, and guides delivered to your inbox.

New postal code updatesFree tools and featuresGuides and insights

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The comprehensive postal code directory. Find codes for any location and country quickly and accurately.

Tools

ATM Finder
Download Printable Postal Codes
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© Copyright 2026 ListPostCode. All rights reserved.

All Postal Codes/United States/Iowa/Onawa

Onawa Postal Codes

Administrative structure

Level 2: County

1Counties

2

Counties1

Postal code for this area

Onawa uses the following postal code.

Coordinates: 42.037, -96.1072

All Postal Codes/United States/Iowa/Onawa

Onawa Postal Codes

Administrative structure

Level 2: County

1Counties

2

Counties1

Postal code for this area

Onawa uses the following postal code.

Coordinates: 42.037, -96.1072

Onawa - United States Postal Codes