Total & land area: Mongolia vs South Sudan size comparison

Mongolia is 2.43 times bigger by total area compared to South Sudan: 603,909 sq mi vs 248,777 sq mi. Without inland water, the land area of Mongolia is 601,740 sq mi vs 243,990 sq mi for South Sudan — a 2.47 times difference in territory size.

Mongolia ranks 18/197 by total surface area vs 41/197 for South Sudan.
Mongolia occupies 1.05% of the land mass of all countries, compared with 0.42% for South Sudan.
69% of Mongolia's area is agricultural land vs 44.9% in South Sudan.
Mongolia has 2.25% of the world's agricultural land area — S. Sudan has 0.59%.
9.09% of Mongolia is covered by forests, compared to 11.3% in S. Sudan.
0.35% of the world's forests are in Mongolia, and 0.18% are in South Sudan.

True size map comparison: Mongolia vs South Sudan

See how Mongolia and South Sudan compare in true size on the map. Drag the outlines to different latitudes to see how the Mercator projection affects their apparent size.

Total size and land area comparison

	Mongolia	South Sudan
Total area	603,909 sq mi	248,777 sq mi
Size difference ratio	2.43	1
Total area rank	18/197	41/197
Share of all countries' surface area	0.31%	0.13%
Land area	601,740 sq mi	243,990 sq mi
Land area difference ratio	2.47	1
Land area rank	18/197	41/197
Share of all countries' land area	1.05%	0.42%
Population	3,524,788	11,943,408
Population density	6 ppl/mi²	51 ppl/mi²

Surface area by type

	Mongolia	South Sudan
Forest area	54,709 sq mi	27,633 sq mi
Forest area as share of land	9.09%	11.3%
Forest area rank	46/196	63/196
World's forests share	0.35%	0.18%
Agricultural land area	414,933 sq mi	109,449 sq mi
Agricultural land share	69%	44.9%
Agricultural land area rank	11/194	40/194
Share of global agricultural land	2.25%	0.59%
Arable land	4,414 sq mi	9,611 sq mi
Arable land share	0.73%	3.94%
Arable land area rank	103/191	76/191
Permanent cropland	22 sq mi	328 sq mi
Permanent cropland share	0.004%	0.13%
Permanent cropland area rank	160/192	106/192
Water area	2,168 sq mi	4,787 sq mi
Water as share of total area	0.36%	1.92%
Water area rank	62/197	41/197
Roads length	70,339 mi	n/a
Land borders length	5,022 mi	3,739 mi
Coastline length	0 mi	0 mi

Mongolia vs South Sudan size on the map

Data sources: World Bank | Agriculture & Rural Development (2026, retrieved 2026-04-06).

GeoRank.org/size/mongolia/south-sudan | CC BY

The map above outlines the borders of Mongolia and South Sudan but is not accurate for size comparison because it's a 2d map with Mercator projection that distorts territories near the poles. The farther a country is from the equator, the more magnified it appears. More about country size projections.