The area of the city is 11.86 sq mi (30.73 km 2 ) . Iwaki Yumoto Onsen is located in Oyo . The city Iwaki Yumoto Onsen demonym is Santiaguinos  (- as ) . The area of the urban region is Area : 598.75 km2 (231.18 sq mi) . The coordinates of the city are 34°41′24″N 135°11′44″E﻿ / ﻿34.69000°N 135.19556°E . The density of  people in  the metro region of Iwaki Yumoto Onsen is 1,352.5/km 2  (3,527/sq mi) . The postal code of the city is 090101 to 090158 . Iwaki Yumoto Onsen is at an elevation of 1018 m . The water area of the city is 28.08 km 2  (10.84 sq mi) .  The city area code is 041 . The population of the metro region is Population: 3,113,725  . The density of  residents in Iwaki Yumoto Onsen is 630/sq km  (1,600/sq mi) . This city is named after Harry Culver . The land area of the city is 314.95 sq mi (815.72 km 2 ) . Iwaki Yumoto Onsen is the government of Ministry of Culture . 4,800/km 2  (12,000/sq mi) is the density of inhabitents in  the urban region of Iwaki Yumoto Onsen
Land covers815.72 km 2 area of the city