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Prefectures of Japan

Browse all prefectures. Each links to its directory of municipalities and postal codes.

Browse all 47 prefectures. Each links to its full directory of municipalities and postal codes.

Country Overview View Map

Prefectures

Municipalities

1190

Municipalities

Districts

1904

Districts

Neighborhoods

146414

Neighborhoods

146414+

Postal Codes

unique codes

Filter by letter:

47 prefectures

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Aichi Ken

45 municipalities

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Akita Ken

19 municipalities

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Aomori Ken

18 municipalities

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Chiba Ken

43 municipalities

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Ehime Ken

18 municipalities

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Fukui Ken

16 municipalities

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Fukuoka Ken

41 municipalities

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Fukushima Ken

26 municipalities

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Gifu Ken

30 municipalities

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Gumma Ken

19 municipalities

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Hiroshima Ken

19 municipalities

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Hokkaido

96 municipalities

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Hyogo Ken

37 municipalities

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Ibaraki Ken

39 municipalities

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Ishikawa Ken

16 municipalities

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Iwate Ken

24 municipalities

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Kagawa Ken

13 municipalities

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Kagoshima Ken

27 municipalities

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Kanagawa Ken

25 municipalities

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Kochi Ken

17 municipalities

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Kumamoto Ken

23 municipalities

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Kyoto Fu

21 municipalities

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Mie Ken

21 municipalities

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Miyagi Ken

25 municipalities

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Miyazaki Ken

15 municipalities

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Nagano Ken

33 municipalities

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Nagasaki Ken

17 municipalities

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Nara Ken

19 municipalities

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Niigata Ken

29 municipalities

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Oita Ken

17 municipalities

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Okayama Ken

25 municipalities

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Okinawa Ken

16 municipalities

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Osaka Fu

38 municipalities

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Saga Ken

16 municipalities

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Saitama Ken

48 municipalities

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Shiga Ken

16 municipalities

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Shimane Ken

13 municipalities

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Shizuoka Ken

28 municipalities

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Tochigi Ken

19 municipalities

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Tokushima Ken

16 municipalities

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Tokyo To

55 municipalities

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Tottori Ken

9 municipalities

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Toyama Ken

12 municipalities

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Wakayama Ken

15 municipalities

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Yamagata Ken

21 municipalities

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Yamaguchi Ken

17 municipalities

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Yamanashi Ken

18 municipalities

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Understanding postal codes

Postal codes in Japan are used for mail and address lookup.

—Aichi Ken —Akita Ken —Aomori Ken —Chiba Ken —Ehime Ken —Fukui Ken —Fukuoka Ken —Fukushima Ken+39 more

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