Episode 14

Why Alaska Looks Bigger Than It Really Is

Alaska looks as big as Brazil on the classroom wall, and Brazil is five times its size. One American state has been puffed up into a continent, and the culprit is latitude.

Why Alaska Looks Bigger Than It Really Is

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The full episode is on YouTube, about ten minutes long.

Updated: November 14, 2026

Look at the world map on a classroom wall, and find Alaska. It sits at the top, huge and sprawling, as big as Brazil. Now find Brazil, the fifth largest country on Earth, down near the equator. On the wall, the two look like twins. The ground says something else entirely.

Here are the real numbers. Alaska covers about 1.72 million square kilometres in total, and about 1.48 million of that is land. Brazil covers about 8.51 million square kilometres. Brazil is five times the size of Alaska. Alaska is the biggest state in the United States by an enormous margin, but it is not a country, and it is not Brazil. It is about a fifth of the size of the 48 contiguous United States.

The surprise, in numbers

Alaska is bigger than Texas and California put together, and bigger than Texas, California and Montana put together, with room to spare. It is more than twice the size of Texas on its own, and about 17 percent of the whole United States, nearly a fifth of the entire country, in a single state. Alaska is 3,639 kilometres wide from east to west, and 2,285 kilometres from north to south.

The same land that covers a fifth of the lower 48 holds about 740,000 people, fewer than the city of San Francisco. That works out to about one person for every two square kilometres of land, the lowest density of any state. About four in ten Alaskans live in Anchorage. Alaska is a huge state with a thin scatter of people, and its capital, Juneau, cannot even be reached by road.

The honest map

The first reason Alaska looks so big is the map itself. Gerardus Mercator published his world map in 1569. His map keeps local angles and shapes true, and it pays for that by stretching area further and further from the equator. Alaska sits at about 64 degrees north, up where the stretching is at its worst. Brazil sits at about 10 degrees south, near the equator, where Mercator is at its most honest. Alaska gets puffed up, Brazil stays true, and the wall tells you they are twins.

Here is the Mercator tax, charged by latitude. On the equator the tax is nothing, and the map is drawn to true scale. At the latitude of Brazil the map shows area about 1.03 times its true size, close enough to honest. At the latitude of Alaska about five times. At the latitude of Point Barrow, about 71 degrees north, more than nine times. Alaska pays one of the highest taxes on the wall, and it looks like a giant for it.

The problem is built into every flat map. Peel an orange and try to press the skin flat on a table. It tears, or it stretches, or it wrinkles. Mercator gave up area to keep direction. Alaska is also stretched unevenly: the Aleutian Islands, near 51 degrees north, are inflated about two and a half times, while Point Barrow, near 71 degrees north, is inflated more than nine times. The Alaska on your wall is not just too big. It is the wrong shape.

Isolation on the map

Watch the same state in two frames, and the trick shows itself. On a world map, Alaska sits at the top edge, and yet it still looks enormous, because Mercator has puffed it up. On a map of the United States, the opposite happens. Alaska is so far from the lower 48 that mapmakers shrink it into a little inset box in the corner, at a different scale, or chop it off entirely. The land never changes. The frame does.

Alaska also breaks the map in a way no other state does. The Aleutian Islands stretch so far west that they cross the 180th meridian, which makes Alaska the northernmost, the westernmost, and the easternmost state in the country, all at once.

In Utqiagvik, the northernmost town in the United States, the sun sets in mid November and does not rise again for about 65 days. In summer it stays up for more than 80 days without setting. The name Alaska comes from the Aleut word alaxsxaq, meaning the mainland, and people have lived here for thousands of years. The United States bought the land from Russia in 1867 for 7.2 million dollars, about two cents an acre, and Alaska became the 49th state in 1959.

No perfect map

There is no perfect flat map of a round world. Mercator tells the truth about direction and stretches area. The Gall-Peters map tells the truth about area and bends shape. Equal Earth splits the difference and gets both mostly right. On a Mercator map Alaska looks as big as Brazil. On an equal area map it shrinks back to its true size, and Brazil grows back to its own.

So next time you look at the wall, remember the numbers. Alaska covers about 1.72 million square kilometres, and about 1.48 million of that is land. Brazil covers about 8.51 million. Texas would fit inside Alaska about two and a half times, and the lower 48 states are about five times the size of Alaska's land. Once you have seen Alaska at its true size, the classroom wall never looks the same again.

Sources and further reading

The facts behind this episode, from the sources that tell the story best.

Keep reading

Two books that go with this episode. If you buy through these links, the site may earn a commission at no extra cost to you.

Alaska

James A. Michener

The sweeping novel of Alaska from its origins to statehood, the human story behind the episode's numbers.

See it on Amazon

Into the Wild

Jon Krakauer

The true story of Chris McCandless in the Alaskan wilderness, the most famous modern Alaska story.

See it on Amazon

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