Home Countries Post Offices Tools Blog Contact

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.

Tools

ATM Finder
Download Printable Postal Codes
Postcode Widget Generator
Post Office Finder
Currency Converter

Resources

All Postal Codes
Find Post Office
Maps
Countries
Blog

Info

About
Advertise with us
Our sponsors
Contact
Privacy
Terms

© Copyright 2026 ListPostCode. All rights reserved.

Facebook Telegram X (Twitter)

Designed & Optimized by Inventodia

All Postal Codes/Japan/Chiba Ken/Onuma

Onuma Postal Codes

Administrative structure

Level 2: Municipality(市町村)

1Municipalities

2

Municipalities1

Postal code for this area

Onuma uses the following postal code.

Coordinates: 35.5303, 140.4127