was a

district A district is a type of administrative division that in some countries is managed by the local government. Across the world, areas known as "districts" vary greatly in size, spanning regions or county, counties, several municipality, municip ...

located in

Niigata Prefecture is a Prefectures of Japan, prefecture in the Chūbu region of Honshu of Japan. Niigata Prefecture has a population of 2,131,009 (1 July 2023) and is the List of Japanese prefectures by area, fifth-largest prefecture of Japan by geographic area ...

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

. As of 2003, the district had an estimated

population Population is a set of humans or other organisms in a given region or area. Governments conduct a census to quantify the resident population size within a given jurisdiction. The term is also applied to non-human animals, microorganisms, and pl ...

of 2,035 with a

density Density (volumetric mass density or specific mass) is the ratio of a substance's mass to its volume. The symbol most often used for density is ''ρ'' (the lower case Greek letter rho), although the Latin letter ''D'' (or ''d'') can also be u ...

of 51.09 persons per km². The total area is 39.83 km².

Municipalities

Prior to its dissolution, the district contained only one village: * Yamakoshi

History

District Timeline

Recent mergers

* On April 1, 2005 - The village of Yamakoshi, along with the town of Oguni (from Kariwa District), the town of

Nakanoshima is a 3 km long and 50 hectares narrow sandbank in Kita-ku, Osaka city, Japan, that divides the Kyū-Yodo into the Tosabori and Dōjima rivers. Many governmental and commercial offices (including the city hall of Osaka), museums and oth ...

(from Minamikanbara District), and the towns of Koshiji and

Mishima Mishima may refer to: Places * Mishima, Fukushima, a town in Fukushima Prefecture * Mishima, Kagoshima, a village in Kagoshima Prefecture * Mishima, Niigata, a town in Niigata Prefecture * Mishima, Shizuoka, a city in Shizuoka Prefecture, Japa ...

(both from Santō District), was merged into the expanded city of Nagaoka. Therefore, Koshi District was dissolved as a result of this merger.

Notes

References