JP Japan Major Regions Postal Code Details
🏛️ Saitama · Kanto
362-0058
Ageo-shi
351-0025
Asaka-shi
368-0044
Chichibu-shi
330-6012
Chuo-ku
354-0002
Fujimi-shi
356-0004
Fujimino-shi
366-0833
Fukaya-shi
361-0034
Gyoda-shi
357-0061
Hanno-shi
348-0024
Hanyu-shi
349-0143
Hasuda-shi
350-0321
Hatoyama-machi
350-1224
Hidaka-shi
355-0375
Higashichichibu-mura
355-0033
Higashimatsuyama-shi
367-0022
Honjo-shi
362-0811
Ina-machi
358-0043
Iruma-shi
339-0007
Iwatsuki-ku
367-0313
Kamikawa-machi
369-0305
Kamisato-machi
344-0136
Kasukabe-shi
350-1121
Kawagoe-shi
333-0822
Kawaguchi-shi
350-0131
Kawajima-machi
349-1141
Kazo-shi
364-0022
Kitamoto-shi
365-0023
Konosu-shi
343-0103
Matsubushi-machi
336-0912
Midori-ku
336-0036
Minami-ku
369-1412
Minano-machi
337-0002
Minuma-ku
367-0107
Misato-machi
341-0054
Misato-shi
345-0832
Miyashiro-machi
354-0045
Miyoshi-machi
350-0456
Moroyama-machi
369-1302
Nagatoro-machi
355-0801
Namegawa-machi
352-0003
Niiza-shi
331-0057
Nishiku
368-0104
Ogano-machi
355-0311
Ogawa-machi
350-0423
Ogose-machi
363-0015
Okegawa-shi
330-0854
Omiya-ku
355-0215
Ranzan-machi
350-0218
Sakado-shi
338-0824
Sakura-ku
340-0116
Satte-shi
350-1311
Sayama-shi
353-0005
Shiki-shi
349-0203
Shiraoka-shi
340-0025
Soka-shi
345-0012
Sugito-machi
335-0031
Toda-shi
355-0359
Tokigawa-machi
359-1123
Tokorozawa-shi
350-2211
Tsurugashima-shi
330-0043
Urawa-ku
351-0101
Wako-shi
335-0005
Warabi-shi
340-0805
Yashio-shi
368-0071
Yokoze-machi
369-1221
Yorii-machi
342-0050
Yoshikawa-shi
355-0152
Yoshimi-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.