Japan ZIP Code Dataset

Tokyo has many postal codes. For central Tokyo (Chiyoda) an example 郵便番号 is 100-0001.

Japan does not use 5-digit ZIP codes; its postal codes (郵便番号) are seven digits in the format 999-9999. A five-digit number would be incomplete—use the full 7-digit postal code.

Yes. Japan uses postal codes (郵便番号), commonly referred to as ZIP codes, formatted as three digits, a hyphen, then four digits (e.g., 123-4567).

Yes. Japan uses postal codes (郵便番号) nationwide, formatted as seven digits with a hyphen like 999-9999.

No town in Japan has the ZIP code 12345. Japanese 郵便番号 use a seven-digit format (e.g., 123-4567), so 12345 does not match any official postal code.

Yes. Japan uses postal codes (郵便番号) similar to U.S. ZIP codes: seven digits written as 999-9999, used to sort and route mail across the country.

Yes. Japan uses a postal code system (郵便番号) formatted as three digits, a hyphen, and four digits (e.g. 123-4567). It’s used nationwide for mail sorting and addressing.

The country code “JP” (Japan’s ISO country code) is sometimes mistakenly entered in the ZIP code field in Japan. Japan uses the 999-9999 郵便番号 format for mail.

Write the postal code first (郵便番号) in 999-9999 format, then prefecture, city/ward, neighborhood, chōme‑ban‑gō (block and house numbers), building name and apartment number, and recipient name. Example:

郵便番号 123-4567
東京都 千代田区 神田一丁目 1-2-3
丸の内ビル 101号室
山田 太郎 様

Japan does not have a single ZIP code. Postal codes (郵便番号) are seven digits in the format 999-9999 and are assigned to specific prefectures, cities, towns, and neighborhoods; provide a city or address to get the exact code.

The postal code format in Japan is 999-9999 — seven digits with a hyphen after the third digit; it is referred to as 郵便番号.

A ZIP code (郵便番号) in Japan consists of seven digits, usually written with a hyphen after the first three (format: 123-4567).

Yes. Addresses in Japan include a postal code (郵便番号). It is a seven-digit code written as 999-9999 and is usually placed before the prefecture/city line or in a dedicated box at the top of the address to aid mail sorting.

ZIP code 100-0001 in Japan (郵便番号 100-0001) corresponds to the Chiyoda area of Chiyoda Ward, Tokyo Metropolis (千代田区千代田), in central Tokyo near the Imperial Palace.