JP Japan Major Regions Postal Code Details
🏛️ Ehime · Shikoku
798-4126
Ainan-cho
796-0504
Ikata-cho
799-2307
Imabari-shi
791-3204
Iyo-shi
794-2501
Kamijima-cho
798-1343
Kihoku-cho
791-1801
Kumakogen-cho
791-3163
Masaki-cho
798-2104
Matsuno-cho
790-0053
Matsuyama-shi
792-0009
Niihama-shi
795-0011
Ozu-shi
799-1333
Saijo-shi
796-0903
Seiyo-shi
799-0723
Shikokuchuo-shi
791-2144
Tobe-cho
791-0301
Toon-shi
791-3364
Uchiko-cho
798-1142
Uwajima-shi
796-0170
Yawatahama-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.