Photo: 水だらけのプール / CC BY-SA 4.0 · Wikimedia Commons
Iwaki City
Fukushima Prefecture · City
Official websiteFukushima Prefecture page
Iwaki City is the central city of the southern Hamadori region and has the largest area in the prefecture. It once prospered with the Joban coalfield, and it is known for a large leisure facility that uses hot water from the coal mines. Its sights also include Aquamarine Fukushima, an aquarium at Onahama Port, the National Treasure Shiramizu Amida-do hall and Iwaki Yumoto Onsen.
Key facts
Source: Statistics Bureau of Japan, 2025 Population Census (population, area and density); area from the Geospatial Information Authority of Japan (GSI), Area Statistics of Prefectures and Municipalities (2025). National ranks are among the 1,741 municipalities, ordered by this site from these values.
Live information
Current weather (observed)
Places to visit
Chosen automatically, most popular first, from landmarks and cultural properties registered in Wikidata (we have not checked whether each is open). Names and descriptions: Wikidata (CC0); photos: Wikimedia Commons (photographer and license under each photo).
Mountains in this city
Mountains whose summit is in this municipality (mountains of 800 m or higher on this site's map, and mountains in the famous-mountain lists). Elevations from Wikidata and other sources.
Neighboring municipalities
Municipalities sharing a boundary (computed from the National Land Numerical Information administrative boundaries, January 2021).
Other municipalities in Fukushima Prefecture
The description was written for this site, picking out representative features.