JP Japan Major Regions Postal Code Details
🏛️ Yamaguchi · Chugoku
759-3621
Abu-cho
758-0302
Hagi-shi
743-0102
Hikari-shi
742-1104
Hirao-cho
747-0022
Hofu-shi
740-1407
Iwakuni-shi
742-1404
Kaminoseki-cho
744-0032
Kudamatsu-shi
759-2142
Mine-shi
759-4101
Nagato-shi
756-0865
Sanyoonoda-shi
759-5331
Shimonoseki-shi
745-0045
Shunan-shi
742-1504
Tabuse-cho
755-0015
Ube-shi
740-0062
Waki-cho
754-0029
Yamaguchi-shi
742-0003
Yanai-shi
📮JP Japan Regional Postal Code FAQ & Postal Regulations
🔢 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.