Prefecture of Japan
Hiroshima
広島県Hiroshima is a prefecture of Japan. It covers about 8,300 km² (3,210 mi²), the 12th largest of the 47 prefectures in Natural Earth’s file for Japan, and 83% of the size of Lebanon. About 2.8 million people live there (Wikidata, 2021).
50 km
- Lebanon
- Hiroshima
Facts
| Area, measured | 8,300 km²3,210 mi² |
|---|---|
| Official area | 8,480 km²Wikidata · 2.1% above our measure |
| Share of Japan | 2.2%of the area of the 47 prefectures |
| Rank by area | 12th of 47prefectures of Japan |
| Population | 2.8 millionWikidata, 2021 |
| Density | 336 people per km² |
| Capital | Hiroshima |
| Latitude range | 34°N to 35°N |
| Type | PrefectureJP-34 |
What the numbers say about Hiroshima
- Hiroshima covers 2.2% of the area of Japan and ranks 12th of 47 by both area and population.
- It would take 45.0 prefectures the size of Hiroshima to cover Japan.
- The largest, Hokkaido (Japan), is 9.49× the size of Hiroshima; the smallest, Kagawa, is 22% of it.
- Closest in size within Japan: Hyogo (8,380 km², 1.01×) and Miyazaki (7,860 km², 1.06×).
- Counted as a country, Hiroshima would be larger than 70 of the 239 countries and territories listed on sizeversus, and would rank 170th by area, between Puerto Rico (9,010 km²) and French Southern and Antarctic Lands (6,990 km²).
- With 2.8 million people it would rank 140th of 238 by population.
- Hiroshima has 336 people per km², about the density of Japan, which has 331 per km².
- That makes Hiroshima the 16th most densely populated of the 47 prefectures, 99% of the average for Japan (338 per km²).
- On a standard web map (Web Mercator), a place at 35°N is drawn about 1.5× too large in area, so Hiroshima looks bigger there than it is.
- Laid out flat, Hiroshima stretches about 112 km north to south and 129 km east to west.
- Our measured 8,300 km² is 2.1% below Wikidata's official figure of 8,480 km². Official figures can include inland water or count land that an outline draws differently.
Beside the regions of other countries
The closest region by area and by people in each of the other countries that have regional pages here, within a factor of 2. All 395 regions side by side.
- ChinaAreaShanghai1.23× · 6,750 km²PeopleTibet77% · 3.6 million (2020)
- United StatesAreaConnecticut65% · 12,700 km²PeopleKansas0.95× · 2.9 million (2020)
- IndiaAreaAndaman and Nicobar Islands1.17× · 7,110 km²PeopleManipur0.98× · 2.9 million (2011)
- GermanyAreaSchleswig-Holstein54% · 15,400 km²PeopleSchleswig-Holstein0.94× · 3.0 million (2022)
- FranceAreaCorsica (France)0.96× · 8,670 km²PeopleBourgogne-Franche-Comté1.00× · 2.8 million (2022)
- ItalyAreaUmbria0.98× · 8,500 km²PeopleTuscany75% · 3.7 million (2019)
- SpainAreaCommunity of Madrid1.04× · 8,000 km²PeopleGalicia1.03× · 2.7 million (2024)
- BrazilAreaFederal District1.43× · 5,790 km²PeopleFederal District0.99× · 2.8 million (2022)
- CanadaAreaPrince Edward Island1.45× · 5,730 km²PeopleAlberta65% · 4.3 million (2021)
- AustraliaAreanone within 2×PeopleWestern Australia0.93× · 3.0 million (2024)
- MexicoAreaQuerétaro71% · 11,700 km²PeopleSonora0.98× · 2.9 million (2015)
- ThailandAreaSurin0.97× · 8,560 km²PeopleNakhon Ratchasima1.06× · 2.6 million (2020)
Where Hiroshima sits in Japan
All 47 drawn on one equal-area map, so sizes are comparable. Select another to open it.
Compare Hiroshima
- Mato Grosso do Sul vs Hiroshima
- Bourgogne-Franche-Comté vs Hiroshima
- Lebanon vs Hiroshima
- Gambia vs Hiroshima
- Albania vs Hiroshima
- Uruguay vs Hiroshima
- Montenegro vs Hiroshima
- Hiroshima vs Prince Edward Island
- Hiroshima vs Shanghai
- Hiroshima vs Federal District
- Connecticut vs Hiroshima
- Hiroshima vs Andaman and Nicobar Islands
- Querétaro vs Hiroshima
- Hiroshima vs Community of Madrid
- Corsica (France) vs Hiroshima
- Schleswig-Holstein vs Hiroshima
- Umbria vs Hiroshima
- Surin vs Hiroshima
Share this outline
Sources and method
- Outline
- Natural Earth, 1:10m Admin 1 - States, Provinces, public domain
- Boundary
- De facto, as drawn by Natural Earth.
- Area
- Measured on the WGS84 ellipsoid from the full-detail outline, shown rounded. The region’s whole area is counted, every island included.
- Official figures
- Area, population and capital from Wikidata (CC0), fetched 2026-11-12
- Population
- Wikidata, 2021. Japan’s units share the 2021 figures where Wikidata has them; the year is shown wherever the figure is.
- Matching
- Countries come from Natural Earth’s country file. Places whose status is contested and dependencies are never used as automatic matches. A region under 2,500 km² is matched against the small countries and island nations.
- Data built
- 2026-11-12