Japanese addressing system

The Japanese addressing system is used to identify a specific location in Japan. When written in Japanese characters, addresses start with the largest geographical entity and proceed to the most specific one. When written in Latin characters, addresses follow the convention used by most Western addresses and start with the smallest geographic entity (typically a house number) and proceed to the largest. The Japanese system is complex and idiosyncratic, the product of the natural growth of urban areas, as opposed to the systems used in cities that are laid out as grids and divided into quadrants or districts.

Japanese addresses begin with the largest division of the country, the prefecture. These are generally called ken (県), but there are also three other special prefecture types: to (都) for Tokyo, dō (道) for Hokkaidō and fu (府) for the two urban prefectures of Osaka and Kyoto.

Following the prefecture is the municipality. For a large municipality this is the city (shi, 市). Cities with a large enough population, called designated cities, can be further broken down into wards (ku, 区). Tokyo has both ordinary cities and special wards (tokubetsu-ku, 特別区), each of which has the status of a city. For smaller municipalities, the address includes the district (gun, 郡) followed by the town (chō or machi, 町) or village (mura or son, 村). In Japan, a city is separate from districts, which contain towns and villages.

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