The map above shows Alaska and South America side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Alaska vs South America Geography
Land area: Alaska has a land area of 571,242 square miles (1,479,509 km²), while South America has 6,888,063 square miles (17,840,000 km²). South America's land area is 12.1 times larger than Alaska's.
Length: Alaska is 1,201 miles (1,933 km) long from north to south; South America is 4,904 miles (7,892 km). South America's north-south length is 4.1 times (308%) longer than Alaska's.
Width: Alaska spans 1,544 miles (2,485 km) east to west; South America spans 5,046 miles (8,121 km). South America's east-west width is 3.3 times (227%) wider than Alaska's.
Highest point: Alaska's highest point is Denali at 20,235 feet (6,168 m); South America's is Aconcagua at 22,838 feet (6,961 m). Aconcagua is 2,603 feet higher than Denali.
Lowest point: Alaska's lowest point is Pacific Ocean at 0 feet; South America's is Laguna del Carbon at -344 feet. South America's lowest point is 344 feet lower.
Alaska vs South America Population and History
Population: Alaska has a population of 740,133 (2024), while South America has 442,000,000 (2025 UN estimate). South America's population is 597.2 times larger than Alaska's.
Population density: Alaska: 1.3 people per square mile vs South America: 64.2. South America's population density is 49.4 times higher than Alaska's.
Official Websites
More Size Comparisons
All Alaska size comparisons · All South America size comparisons
Area, elevation and boundary figures come from official national statistics and US Census Bureau and Natural Earth boundary data; US state population, economic, county and tax figures come from the US Census Bureau, the Bureau of Economic Analysis and the Tax Foundation. Figures are rounded and for general reference.