Motomiya (本宮市 Motomiya-shi) is a city situated in the middle of Nakadōri region of Fukushima Prefecture, Japan. As of December 2014, the city had an estimated population of 30,505 and a population density of 347 persons per km². The total area was 87.94 km². It is the smallest city in Fukushima, both in terms of population and size. The modern city of Motomiya was established on January 1, 2007, by the merger of the former town of Motomiya absorbing the village of Shirasawa (both from Adachi District). The city became the first new municipality to form under the New Merger Law, in effect since April 2005. Located conveniently in the middle of Fukushima Prefecture, Motomiya has easy access to national transportation route including the Tohoku Expressway, Japan National Route 4, and Tohoku JR East rail lines via Motomiya Station.