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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

No spam, unsubscribe anytime.

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

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

All Postal Codes/Japan/Chiba Ken/Oio

Oio Postal Codes

Administrative structure

Level 2: Municipality(市町村)

1Municipalities

2

Municipalities1

Postal code for this area

Oio uses the following postal code.

Coordinates: 35.7093, 140.5449

All Postal Codes/Japan/Chiba Ken/Oio

Oio Postal Codes

Administrative structure

Level 2: Municipality(市町村)

1Municipalities

2

Municipalities1

Postal code for this area

Oio uses the following postal code.

Coordinates: 35.7093, 140.5449

Oio - Japan Postal Codes