A is a local administrative unit in
Japan. Cities are ranked on the same level as and , with the difference that they are not a component of . Like other contemporary administrative units, they are defined by the
Local Autonomy Law of 1947.Generally, a village or town can be promoted to a city when its population increases above fifty thousand, and a city can (but need not) be demoted to a town or village when its population decreases below fifty thousand. The least-populated city,
Utashinai, Hokkaido, has population of mere six thousand, while a town in the same prefecture,
Otofuke, Hokkaido, has nearly forty thousand. Larger cities of at least 200,000 inhabitants can achieve one of three special statuses:
special city,
core city, or
“designated” city.
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