is a city in Hyōgo Prefecture, Japan. , the city had an estimated population of 39,001 in 17210 households and a population density of 290 persons per km².The total area of the city is . The city calls itself "The Navel of Japan (Nihon no Heso)." Located at the crossing of the 135° East meridian and the 35° North parallel, the city's Nihon no Heso Park marks the center of the nation Geography Nishiwaki is located in the northern Harima region of Hyōgo prefecture, about 50 kilometers north of Kobe city, bordered by the Chugoku Mountains to the north. The Kakogawa River, Sugihara River, and the Noma River flow through the city, Neighbouring municipalities Hyōgo Prefecture Kasai Katō Taka Sasayama Tanba Climate Nishiwaki has a humid subtropical climate (Köppen climate classification Cfa) with hot summers and cool to cold winters. Precipitation is significantly higher in summer than in winter, though on the whole lower than most parts of Honshū, and there is no significant snowfall. The average annual temperature in Nishiwaki is . The average annual rainfall is with July as the wettest month. The temperatures are highest on average in August, at around , and lowest in January, at around . The highest temperature ever recorded in Nishiwaki was on 30 August 2020; the coldest temperature ever recorded was on 3 February 2012. Demographics Per Japanese census data, the population of Nishiwaki in 2020 is 38,673 people. Nishiwaki has been conducting censuses since 1920. History The area of Nishiwaki was in ancient Harima Province. In the Edo Period, most of the area was tenryō territory under direct administration of the Tokugawa shogunate. Following the Meiji restoration, the village of Sugata, was created within Taka District, Hyōgo with the creation of the modern municipalities system April 1, 1889. It was raised to town status on November 1, 1917, changing its name to Nishiwaki. On April 1,1952 Nishiwaki merged with the neighboring villages of Hino, Shigeharu, and Hiesho to form the city of Nishiwaki. On October 1, 2005, the town of Kurodashō (from Taka District) was merged into Nishiwaki. Government Nishiwaki has a mayor-council form of government with a directly elected mayor and a unicameral city council of 16 members. Nishiwaki, together with the town of Taki, contributes one member to the Hyogo Prefectural Assembly. In terms of national politics, the city is part of Hyōgo 4th district of the lower