Illinois is 1.91× the size of Hokkaido (Japan)
Illinois (state of the United States) covers about 150,000 km² (58,000 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.
- 150,000km²Illinois
- 78,800km²Hokkaido (Japan)
100 km
- Illinois
- 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 52% of the size of Illinois.
- Illinois is larger by 71,400 km² (27,600 mi²), which is 91% of the area of Hokkaido (Japan).
- Measured in Belgiums: Illinois is about 4.90, Hokkaido (Japan) about 2.57.
How they differ
- Illinois also has the larger population: 12.8 million against 5.4 million, 2.36× as many people.
- Per square kilometre that is 85 in Illinois against 69 in Hokkaido (Japan): Illinois is 1.24× as densely populated.
- Their centres are about 9,380 km apart.
- Together Illinois and Hokkaido (Japan) cover 229,000 km², close to the size of Laos (228,000 km², 0.4% smaller).
- The gap between them, 71,400 km², is about the size of Sierra Leone (71,600 km²).
- At Hokkaido (Japan)'s density, Illinois would have 10.4 million people (it has 12.8 million). At Illinois's density, Hokkaido (Japan) would have 6.7 million (it has 5.4 million).
- Hokkaido (Japan)'s centre is 3.3° of latitude, about 360 km, farther north than Illinois's.
- Illinois is the 24th largest of the 51 states and districts of the United States and covers 1.6% of its area; it is the 14th 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.
- Hokkaido (Japan) lies about 3° of latitude (roughly 364 km) north of Illinois.
- Shared out evenly, each person in Illinois would have about 11,720 m² and each person in Hokkaido (Japan) about 14,500 m².
- Laid side by side, Illinois and Hokkaido (Japan) would cover 229,000 km², about the same size as Laos.
- Together they have 18.2 million people, about as many people as the Netherlands.
Side by side
| Illinois | Hokkaido (Japan) | |
|---|---|---|
| Is a | StateUnited States | PrefectureJapan |
| Area, measured | 150,000 km²58,000 mi² | 78,800 km²30,400 mi² |
| Official area | 150,000 km²Wikidata | 83,400 km²Wikidata |
| Rank by area | 24th of 51in the United States | 1st of 47in Japan |
| Population | 12.8 millionWikidata, 2020 | 5.4 millionWikidata, 2014 |
| Rank by population | 6th of 51in the United States | 8th of 47in Japan |
| Density | 85 per km² | 69 per km² |
| Capital | Springfield | Sapporo |
| Latitude range | 37°N to 43°N | 41°N to 46°N |
Population: Wikidata 2020 and Wikidata 2014. Official figures: Wikidata (CC0).
- Wikidata's official figure of 150,000 km² agrees with our measured area of 150,000 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