municipal divisions are divided into three main categories city, town, and village. However the city entities are further categorized. The Special wards of Tokyo are also considered to be municipal divisions. Cities Cities in Japan are categorized into four different types, from the highest the designated city, the core city, the special city, and the regular city at the lowest. Designated city A , also known as a or , is a Japanese city that has a population greater than 500,000 and has been designated as such by an order of the cabinet of Japan under Article 252, Section 19 of the Local Autonomy Law. Designated cities are also subdivided into wards. Core city A is a Japanese city that has a population greater than 300,000 and an area greater than 100 square kilometers, although special exceptions may be made by order of the cabinet for cities with populations under 300,000 but over 200,000. Core city was created by the first clause of Article 252, Section 22 of the Local Autonomy Law of Japan. Special city A of Japan is a city with a population of at least 200,000. This category was established by the Local Autonomy Law, article 252 clause 26. City A is a local administrative unit in Japan with a population of at least 50,000 of which at least 60% of households must be established in a central urban area, and at least 60% of households must be employed in commerce, industry or other urban occupations. Cities are ranked on the same level as and ; the only difference is that they are not a component of . Like other contemporary administrative units, they are defined by the Local Autonomy Law of 1947. Town A is a local administrative unit in Japan. It is a local public body along with prefecture (ken or other equivalents), city (shi), and village (mura). Geographically, a town is contained within a prefecture. Village A is a local administrative unit in Japan. It is a local public body along with , , and . Geographically, a village's extent is contained within a prefecture. It is larger than an actual settlement, being in actuality a subdivision of a rural , which are subdivided into towns and villages with no overlap and no uncovered area. Special Ward The are 23 municipalities that together make up the core and the most populous part of Tokyo