Idaho is 1.02× the size of Hunan

Idaho (state of the United States) covers about 216,000 km² (83,500 mi²) and Hunan (province of China) about 211,000 km² (81,600 mi²). Below, both outlines are drawn at one scale and centred on each other.

216,000km²Idaho
211,000km²Hunan

200 km

Idaho
Hunan

What fits

Hunan is 98% of the size of Idaho.
Idaho is larger by 4,900 km² (1,890 mi²), which is 2.3% of the area of Hunan.
Measured in Belgiums: Idaho is about 7.05, Hunan about 6.89.

How they differ

Idaho is larger, but Hunan has the larger population: 66.4 million against 1.8 million, 36.1× as many people.
Per square kilometre that is 314 in Hunan against 8.5 in Idaho: Hunan is 37.0× as densely populated.
Their centres are about 10,700 km apart.
A standard web map misstates the comparison: Idaho at 44°N is drawn about 2.0× too large and Hunan at 28°N about 1.3×, so the map shows Idaho as 1.57× the size of Hunan instead of 1.02×.
Together Idaho and Hunan cover 428,000 km², close to the size of Iraq (437,000 km², 2.3% bigger).
The gap between them, 4,900 km², is about the size of Trinidad and Tobago (5,120 km²).
At Hunan's density, Idaho would have 68.0 million people (it has 1.8 million). At Idaho's density, Hunan would have 1.8 million (it has 66.4 million).
Idaho's centre is 16.8° of latitude, about 1,860 km, farther north than Hunan's.
Idaho is the 14th largest of the 51 states and districts of the United States and covers 2.3% of its area; it is the 45th most densely populated of them.
Hunan is the 10th largest of the 31 provinces and regions of China and covers 2.3% of its area; it is the 13th most densely populated of them.
Idaho lies about 17° of latitude (roughly 1,860 km) north of Hunan.
Shared out evenly, each person in Idaho would have about 117,590 m² and each person in Hunan about 3,180 m².
Laid side by side, Idaho and Hunan would cover 428,000 km², about the same size as Iraq.
Together they have 68.3 million people, about as many people as France.

Side by side

	Idaho	Hunan
Is a	StateUnited States	ProvinceChina
Area, measured	216,000 km²83,500 mi²	211,000 km²81,600 mi²
Official area	217,000 km²Wikidata	212,000 km²Wikidata
Rank by area	14th of 51in the United States	10th of 31in China
Population	1.8 millionWikidata, 2020	66.4 millionWikidata, 2020
Rank by population	38th of 51in the United States	7th of 31in China
Density	8.5 per km²	314 per km²
Capital	Boise	Changsha
Latitude range	42°N to 49°N	25°N to 30°N

Population: Wikidata 2020. Official figures: Wikidata (CC0).

Wikidata's official figure of 217,000 km² agrees with our measured area of 216,000 km², to within 2%.
Wikidata's official figure of 212,000 km² agrees with our measured area of 211,000 km², to within 2%.

Similar in size to Idaho

Similar in size to Hunan

More comparisons

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

Full method