Nishinoomote is a city located on the island of Tanegashima, in Kagoshima Prefecture, Japan. As of 30 April 2024, the city had an es…Nishinoomote is a city located on the island of Tanegashima, in Kagoshima Prefecture, Japan. As of 30 April 2024, the city had an estimated population of 14,151 in 7941 households, and a population density of 69 persons per km². The total area of the city is 205.57 km².