JP Japan Major Regions Postal Code Details
🏛️ Nagasaki · Kyushu
853-0066
Goto-shi
859-3727
Hasami-cho
859-3809
Higashisonogi-cho
859-4805
Hirado-shi
811-5546
Iki-shi
854-0063
Isahaya-shi
859-3604
Kawatana-cho
859-4507
Matsuura-shi
859-2502
Minamishimabara-shi
852-8104
Nagasaki-shi
851-2127
Nagayo-cho
857-4700
Ojika-cho
856-0047
Omura-shi
851-3424
Saikai-shi
857-0142
Sasebo-shi
857-0361
Saza-cho
855-0022
Shimabara-shi
857-4103
Shinkamigoto-cho
851-2104
Togitsu-cho
817-0241
Tsushima-shi
854-0401
Unzen-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.