The city Iwaki Yumoto Onsen demonym is Santiaguinos  (- as ) . 630/sq km  (1,600/sq mi) is the density of inhabitents in Iwaki Yumoto Onsen . The population of the metro region is Population: 3,113,725  . 041 is the area code of Iwaki Yumoto Onsen . The city has the postal code 090101 to 090158 . Area : 598.75 km2 (231.18 sq mi) is the area of the urban region of Iwaki Yumoto Onsen . The area of the city is 11.86 sq mi (30.73 km 2 ) . The city water area is 28.08 km 2  (10.84 sq mi) . Iwaki Yumoto Onsen is the government of Ministry of Culture . The density of  people in  the urban region of Iwaki Yumoto Onsen is 4,800/km 2  (12,000/sq mi) . Iwaki Yumoto Onsen is located in Oyo . Iwaki Yumoto Onsen is named for Harry Culver . Iwaki Yumoto Onsen is at an elevation of 3340 ft . The city land area is 314.95 sq mi (815.72 km 2 ) . The coordinates of the city are 34°41′24″N 135°11′44″E﻿ / ﻿34.69000°N 135.19556°E . 1,352.5/km 2  (3,527/sq mi) is the density of inhabitents in  the metro region of Iwaki Yumoto Onsen
The native of the city Iwaki Yumoto Onsen are also called Catanesi