JP Japan Major Regions Postal Code Details
🏛️ Ibaraki · Kanto
300-1155Ami-machi
Ami-machi ibaraki kanto 300-1155 Japan
306-0501Bando-shi
Bando-shi ibaraki kanto 306-0501 Japan
308-0824Chikusei-shi
Chikusei-shi ibaraki kanto 308-0824 Japan
319-3551Daigo-machi
Daigo-machi ibaraki kanto 319-3551 Japan
306-0307Goka-machi
Goka-machi ibaraki kanto 306-0307 Japan
319-1232Hitachi-shi
Hitachi-shi ibaraki kanto 319-1232 Japan
312-0007Hitachinaka-shi
Hitachinaka-shi ibaraki kanto 312-0007 Japan
319-2141Hitachiomiya-shi
Hitachiomiya-shi ibaraki kanto 319-2141 Japan
313-0015Hitachiota-shi
Hitachiota-shi ibaraki kanto 313-0015 Japan
311-2105Hokota-shi
Hokota-shi ibaraki kanto 311-2105 Japan
311-3106Ibaraki-machi
Ibaraki-machi ibaraki kanto 311-3106 Japan
300-1413Inashiki-shi
Inashiki-shi ibaraki kanto 300-1413 Japan
315-0162Ishioka-shi
Ishioka-shi ibaraki kanto 315-0162 Japan
311-2409Itako-shi
Itako-shi ibaraki kanto 311-2409 Japan
303-0041Joso-shi
Joso-shi ibaraki kanto 303-0041 Japan
314-0133Kamisu-shi
Kamisu-shi ibaraki kanto 314-0133 Japan
319-0202Kasama-shi
Kasama-shi ibaraki kanto 319-0202 Japan
314-0039Kashima-shi
Kashima-shi ibaraki kanto 314-0039 Japan
315-0055Kasumigaura-shi
Kasumigaura-shi ibaraki kanto 315-0055 Japan
300-1402Kawachi-machi
Kawachi-machi ibaraki kanto 300-1402 Japan
319-1721Kitaibaraki-shi
Kitaibaraki-shi ibaraki kanto 319-1721 Japan
306-0106Koga-shi
Koga-shi ibaraki kanto 306-0106 Japan
300-0423Miho-mura
Miho-mura ibaraki kanto 300-0423 Japan
311-4153Mito-shi
Mito-shi ibaraki kanto 311-4153 Japan
302-0131Moriya-shi
Moriya-shi ibaraki kanto 302-0131 Japan
311-0116Naka-shi
Naka-shi ibaraki kanto 311-0116 Japan
311-1715Namegata-shi
Namegata-shi ibaraki kanto 311-1715 Japan
311-1301Oarai-machi
Oarai-machi ibaraki kanto 311-1301 Japan
311-3406Omitama-shi
Omitama-shi ibaraki kanto 311-3406 Japan
301-0826Ryugasaki-shi
Ryugasaki-shi ibaraki kanto 301-0826 Japan
306-0426Sakai-machi
Sakai-machi ibaraki kanto 306-0426 Japan
309-1213Sakuragawa-shi
Sakuragawa-shi ibaraki kanto 309-1213 Japan
304-0076Shimotsuma-shi
Shimotsuma-shi ibaraki kanto 304-0076 Japan
311-4312Shirosato-machi
Shirosato-machi ibaraki kanto 311-4312 Japan
318-0021Takahagi-shi
Takahagi-shi ibaraki kanto 318-0021 Japan
319-1116Tokai-mura
Tokai-mura ibaraki kanto 319-1116 Japan
300-1632Tone-machi
Tone-machi ibaraki kanto 300-1632 Japan
300-1531Toride-shi
Toride-shi ibaraki kanto 300-1531 Japan
300-4104Tsuchiura-shi
Tsuchiura-shi ibaraki kanto 300-4104 Japan
300-2664Tsukuba-shi
Tsukuba-shi ibaraki kanto 300-2664 Japan
300-2433Tsukubamirai-shi
Tsukubamirai-shi ibaraki kanto 300-2433 Japan
300-1202Ushiku-shi
Ushiku-shi ibaraki kanto 300-1202 Japan
300-3536Yachiyo-machi
Yachiyo-machi ibaraki kanto 300-3536 Japan
307-0032Yuki-shi
Yuki-shi ibaraki kanto 307-0032 Japan
📋 Japan Address and Delivery Guidance
📮
Use a Complete Delivery Address:
Include the recipient name, building or street address, locality, region where applicable, postal code when the destination uses one, and the destination country or territory.
🌍
Follow Local Address Conventions:
Use the language, character set and address order requested by the recipient, official postal operator or carrier. Do not assume every destination uses the same postal-code format.
✅
Verify Before Dispatch:
Confirm the postal code, service coverage and any customs or carrier requirements with the recipient and the relevant official postal operator before shipping.
💡
Delivery Information Is Context-Specific:
Postal codes help routing only in territories that use them. Accurate recipient details remain essential for delivery in every destination.
Postal information, sources and verification
Use this page as a routing reference and confirm the complete address, postal code format and delivery restrictions with the relevant official postal operator or carrier before dispatch.
Editorial and service accountability
This postal-code reference is maintained by the 56ok.com logistics-content team for international shipping preparation. It is reviewed against publicly available postal-operator information; it is not an official postal authority and does not replace carrier or customs instructions.
This reference is maintained as postal and carrier information changes. Need a correction? Contact our team.
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📮Japan Postal FAQ and delivery guidance
🔢 How many digits are in a Japanese postal code?
Japanese postal codes consist of 7 digits in XXX-XXXX format (e.g., 100-8994).
🌍 Are extra markings needed for international mail?
Yes, for mail to Japan, add 'JAPAN' in English on the last address line, while keeping the 7-digit postal code.
❓ How to find an unknown postal code?
Use Japan Post's official postal code search (jp.postcode.com) or Google "住所 郵便番号" + address keywords.
📮 Will a wrong postal code delay delivery?
If the full address is correct, delivery may succeed but will be significantly delayed. Verify codes via Japan Post's address correction system.
🔄 Do postal codes ever change?
Yes, codes may update due to administrative changes. Always refer to the latest annual "Postal Code Directory" by Japan Post.
