Postal Code Directory
Complete postal code directory
Complete postal code directory for Japan with 4 administrative level(s). Browse by prefecture > municipality > district > neighborhood to find the exact postal code you need.
Search by name, code, or location...Postal Code Format
1000
Postal code format varies by country (often 4–6 digits; some use alphanumeric).
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Address format
Name; 12 Tokyo Tower; Shibakoen 23; Minato Tokyo 876-4512; JAPAN
47
Prefectures
都道府県
25740+
Municipalities
市町村
Select a prefecture to explore its postal codes
Aichi Ken
Akita Ken
Aomori Ken
Chiba Ken
Ehime Ken
Fukui Ken
Fukuoka Ken
Fukushima Ken
Gifu Ken
Gumma Ken
Hiroshima Ken
Hokkaido
Hyogo Ken
Ibaraki Ken
Ishikawa Ken
Iwate Ken
Kagawa Ken
Kagoshima Ken
Kanagawa Ken
Kochi Ken
Kumamoto Ken
Kyoto Fu
Mie Ken
Miyagi Ken
Miyazaki Ken
Nagano Ken
Nagasaki Ken
Nara Ken
Niigata Ken
Oita Ken
Okayama Ken
Osaka Fu
Saga Ken
Saitama Ken
Shiga Ken
Shimane Ken
Shizuoka Ken
Tochigi Ken
Tokushima Ken
Tokyo To
Tottori Ken
Toyama Ken
Wakayama Ken
Yamagata Ken
Yamaguchi Ken
Yamanashi Ken
Okinawa Ken
Japan uses a 5-character postal code system. The code structure represents the administrative hierarchy from prefecture to municipality.
