JP Japan Major Regions Postal Code Details
🏛️ Gunma · Kanto
379-0105
Annaka-shi
370-0505
Chiyoda-machi
370-1401
Fujioka-shi
377-0814
Higashiagatsuma-machi
370-0114
Isesaki-shi
374-0112
Itakura-machi
370-1505
Kanna-machi
370-2211
Kanra-machi
378-0414
Katashina-mura
378-0103
Kawaba-mura
376-0043
Kiryu-shi
377-1712
Kusatsu-machi
371-0855
Maebashi-shi
370-0704
Meiwa-machi
376-0303
Midori-shi
379-1403
Minakami-machi
377-1308
Naganohara-machi
377-0544
Nakanojo-machi
370-2800
Nanmoku-mura
378-0326
Numata-shi
370-0523
Oizumi-machi
370-0605
Ora-machi
373-0813
Ota-shi
377-0062
Shibukawa-shi
370-2612
Shimonita-machi
370-3500
Shinto-mura
379-1206
Showa-mura
370-1211
Takasaki-shi
377-0701
Takayama-mura
370-1105
Tamamura-machi
374-0051
Tatebayashi-shi
370-2324
Tomioka-shi
384-0097
Tsumagoi-mura
370-1617
Ueno-mura
370-3607
Yoshioka-machi
📮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.