Montana is 1.07× the size of Mato Grosso do Sul

Montana (state of the United States) covers about 379,000 km² (147,000 mi²) and Mato Grosso do Sul (state of Brazil) about 356,000 km² (137,000 mi²). Below, both outlines are drawn at one scale and centred on each other.

379,000km²Montana
356,000km²Mato Grosso do Sul

200 km

Montana
Mato Grosso do Sul

What fits

Mato Grosso do Sul is 94% of the size of Montana.
Montana is larger by 23,500 km² (9,060 mi²), which is 6.6% of the area of Mato Grosso do Sul.
Measured in Belgiums: Montana is about 12.4, Mato Grosso do Sul about 11.6.

How they differ

Montana is larger, but Mato Grosso do Sul has the larger population: 2.8 million against 1.1 million, 2.54× as many people.
Per square kilometre that is 7.7 in Mato Grosso do Sul against 2.9 in Montana: Mato Grosso do Sul is 2.71× as densely populated.
Their centres are about 9,280 km apart.
A standard web map misstates the comparison: Montana at 47°N is drawn about 2.2× too large and Mato Grosso do Sul at 20°S about 1.1×, so the map shows Montana as 2.02× the size of Mato Grosso do Sul instead of 1.07×.
Together Montana and Mato Grosso do Sul cover 736,000 km², close to the size of Chile (736,000 km², 0.1% bigger).
The gap between them, 23,500 km², is about the size of Belize (22,300 km²).
At Mato Grosso do Sul's density, Montana would have 2.9 million people (it has 1.1 million). At Montana's density, Mato Grosso do Sul would have 1.0 million (it has 2.8 million).
Montana's centre is 67.4° of latitude, about 7,490 km, farther north than Mato Grosso do Sul's.
Montana is the 4th largest of the 51 states and districts of the United States and covers 4.0% of its area; it is the 49th most densely populated of them.
Mato Grosso do Sul is the 6th largest of the 27 states and districts of Brazil and covers 4.2% of its area; it is the 19th most densely populated of them.
Montana lies about 67° of latitude (roughly 7,490 km) north of Mato Grosso do Sul, on the other side of the equator.
Shared out evenly, each person in Montana would have about 350,010 m² and each person in Mato Grosso do Sul about 129,140 m².
Laid side by side, Montana and Mato Grosso do Sul would cover 736,000 km², about the same size as Chile.
Together they have 3.8 million people, about as many people as Bosnia and Herzegovina.

Side by side

	Montana	Mato Grosso do Sul
Is a	StateUnited States	StateBrazil
Area, measured	379,000 km²147,000 mi²	356,000 km²137,000 mi²
Official area	381,000 km²Wikidata	357,000 km²Wikidata
Rank by area	4th of 51in the United States	6th of 27in Brazil
Population	1.1 millionWikidata, 2020	2.8 millionWikidata, 2022
Rank by population	44th of 51in the United States	21st of 27in Brazil
Density	2.9 per km²	7.7 per km²
Capital	Helena	Campo Grande
Latitude range	44°N to 49°N	24°S to 17°S

Population: Wikidata 2020 and Wikidata 2022. Official figures: Wikidata (CC0).

Wikidata's official figure of 381,000 km² agrees with our measured area of 379,000 km², to within 2%.
Wikidata's official figure of 357,000 km² agrees with our measured area of 356,000 km², to within 2%.

Similar in size to Montana

Similar in size to Mato Grosso do Sul

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