Iowa is 1.85× the size of Hokkaido (Japan)
Iowa (state of the United States) covers about 145,000 km² (56,200 mi²) and Hokkaido (Japan) (prefecture of Japan) about 78,800 km² (30,400 mi²). Below, both outlines are drawn at one scale and centred on each other.
- 145,000km²Iowa
- 78,800km²Hokkaido (Japan)
100 km
- Iowa
- Hokkaido (Japan)
Hokkaido (Japan): Part of this region's boundary is disputed with Russia. Size Versus draws Natural Earth's de facto outline, the boundary as it is held on the ground, and takes no position on it.
What fits
- Hokkaido (Japan) is 54% of the size of Iowa.
- Iowa is larger by 66,700 km² (25,700 mi²), which is 85% of the area of Hokkaido (Japan).
- Measured in Belgiums: Iowa is about 4.74, Hokkaido (Japan) about 2.57.
How they differ
- Iowa is larger, but Hokkaido (Japan) has the larger population: 5.4 million against 3.2 million, 1.70× as many people.
- Per square kilometre that is 69 in Hokkaido (Japan) against 22 in Iowa: Hokkaido (Japan) is 3.14× as densely populated.
- Their centres are about 8,990 km apart.
- Together Iowa and Hokkaido (Japan) cover 224,000 km², close to the size of Laos (228,000 km², 1.7% bigger).
- The gap between them, 66,700 km², is about the size of Sri Lanka (66,300 km²).
- At Hokkaido (Japan)'s density, Iowa would have 10.0 million people (it has 3.2 million). At Iowa's density, Hokkaido (Japan) would have 1.7 million (it has 5.4 million).
- Hokkaido (Japan)'s centre is 1.3° of latitude, about 140 km, farther north than Iowa's.
- Iowa is the 26th largest of the 51 states and districts of the United States and covers 1.5% of its area; it is the 35th most densely populated of them.
- Hokkaido (Japan) is the largest of the 47 prefectures of Japan and covers 21% of its area; it is the 47th most densely populated of them.
- Both lie at about the same latitude, 42°N and 43°N.
- Shared out evenly, each person in Iowa would have about 45,590 m² and each person in Hokkaido (Japan) about 14,500 m².
- Laid side by side, Iowa and Hokkaido (Japan) would cover 224,000 km², about the same size as Laos.
- Together they have 8.6 million people, 97% as many people as Papua New Guinea.
Side by side
| Iowa | Hokkaido (Japan) | |
|---|---|---|
| Is a | StateUnited States | PrefectureJapan |
| Area, measured | 145,000 km²56,200 mi² | 78,800 km²30,400 mi² |
| Official area | 146,000 km²Wikidata | 83,400 km²Wikidata |
| Rank by area | 26th of 51in the United States | 1st of 47in Japan |
| Population | 3.2 millionWikidata, 2020 | 5.4 millionWikidata, 2014 |
| Rank by population | 31st of 51in the United States | 8th of 47in Japan |
| Density | 22 per km² | 69 per km² |
| Capital | Des Moines | Sapporo |
| Latitude range | 40°N to 44°N | 41°N to 46°N |
Population: Wikidata 2020 and Wikidata 2014. Official figures: Wikidata (CC0).
- Wikidata's official figure of 146,000 km² agrees with our measured area of 145,000 km², to within 2%.
- Our measured 78,800 km² is 5.6% below Wikidata's official figure of 83,400 km². Official figures can include inland water or count land that an outline draws differently. This difference is flagged for review.
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Sources and method
- Outlines
- Natural Earth, 1:10m Admin 1 - States, Provinces, public domain
- Boundary
- De facto, as drawn by Natural Earth. A region is drawn whole, every island included; a country is its main territory.
- Area
- Measured on the WGS84 ellipsoid from the full-detail outlines, shown rounded.
- Drawing
- Each outline is projected with an equal-area projection centred on its own centroid, so areas stay true and the two can be laid over each other.
- Data built
- 2026-11-12