State With the Most Eastern and Western Points

Alaska is the state you're looking for, and it holds both the easternmost and westernmost points in the U.S. simultaneously. That's possible because the Aleutian Islands cross the 180th meridian, placing some islands in the Eastern Hemisphere. Alaska also claims the northernmost point, making it a triple geographic record-holder. It's roughly 2.5 times larger than Texas and represents about half of the entire U.S. coastline. There's far more to this story than most maps let on.

Key Takeaways

• Alaska holds both the easternmost and westernmost U.S. points because its Aleutian Islands cross the 180th meridian into the Eastern Hemisphere.
• Semisopochnoi Island's Pochnoi Point at 179°46′42″E is the easternmost U.S. point among all states.
• Amatignak Island at 179°08′51″W is the westernmost U.S. point among all states.
• Alaska simultaneously holds the northernmost, easternmost, and westernmost points in the United States.
• No other U.S. state straddles the antimeridian, making Alaska's dual longitudinal extreme status entirely unique.

Which State Claims Both the Easternmost and Westernmost Points?

Alaska holds a geographical distinction that no other state can claim: it marks both the easternmost and westernmost points of the United States. You might wonder how one state achieves this. The answer lies in Alaska geography and its unique relationship with the 180th meridian.

The Aleutian Islands stretch so far west that they cross the antimeridian, placing some islands technically east of it by longitude. Semisopochnoi Island's Pochnoi Point sits at 179°46′42″E, making it the easternmost point, while Amatignak Island at 179°08′51″W claims the westernmost. These meridian quirks mean Alaska simultaneously holds both extremes. No other state straddles this line, making Alaska's dual claim an unmatched geographical phenomenon you won't find anywhere else in the country. Alaska is also home to Mount Denali, the highest point in the United States, standing at an elevation of 6,190 meters and holding the title of the tallest peak in all of North America.

Because Alaska straddles the 180th meridian, it produces two easternmost and westernmost definitions, a complexity that arises from no other state sharing this unique longitudinal relationship with the antimeridian. Alaska's position also places it remarkably close to Russia, with the Bering Strait islands of Little Diomede and Big Diomede sitting just 2.4 miles apart at their nearest point.

The Aleutian Islands That Make Alaska Both East and West

How does a single island chain make one state both the easternmost and westernmost point in the country? The Aleutian Islands cross the 180th meridian, placing some islands in the Eastern Hemisphere and others in the Western Hemisphere. That geographical quirk gives Alaska both extreme longitudinal distinctions simultaneously.

Semisopochnoi Island anchors the easternmost point at 179°46'42" east longitude, sitting roughly 10 miles from the 180th meridian. Millions of seabirds dominate the Aleutian wildlife there, and ongoing tectonic activity keeps volcanologists monitoring the island closely due to its position beneath major trans-Pacific flight routes. Alaska contains 17 of the 20 highest peaks in the United States, reflecting just how mountainous and extreme this state's terrain truly is.

Meanwhile, Amatignak Island marks the westernmost point at 179°06'31" west longitude. Protected within the Alaska Maritime National Wildlife Refuge, it remains largely undeveloped, sitting approximately 70 miles across the meridian from Semisopochnoi. Further west still, Attu Island sits at 172° east longitude, nearly 1,100 miles from mainland Alaska, making it the westernmost U.S. island in real geographic terms. Much like Tristan da Cunha, which holds the record as the most remote inhabited archipelago in the world, extreme isolation defines these far-flung island outposts surrounded by vast stretches of open ocean.

Why Alaska Appears on the Wrong Side of Most Maps

Most maps don't actually show Alaska where it belongs. Cartographers tuck it into the bottom-left corner of U.S. maps, rescaling it to fit the layout. That's a double distortion—wrong position and wrong size.

Your projection choice determines what you see. The Mercator projection, designed in 1569 for compass navigation, stretches high-latitude regions exponentially. Alaska already looks larger than Brazil on a standard Mercator map, even though Brazil's actual area is markedly bigger.

This map distortion also hides Alaska's true longitudinal reach across the 180th meridian. By repositioning and rescaling the state, traditional maps erase the geographic reality you just read about—that Alaska genuinely spans both the easternmost and westernmost points in the United States. In reality, Africa is fourteen times larger than Greenland, yet both distortions stem from the same Mercator mechanics warping Alaska's representation.

Tools like thetruesize.com let you drag landmasses to different latitudes, revealing that countries near the poles appear disproportionately larger than those positioned along the equator. Much like Istanbul, which straddles Europe and Asia across the Bosphorus Strait, Alaska's transcontinental character is a geographic reality that conventional mapping conventions consistently obscure.

How Alaska Holds Three Geographic Records at Once

When you consider geographic extremes, few places match Alaska's sweep—it holds the northernmost, westernmost, and easternmost points in the United States simultaneously. Unlike continental drift, which reshapes landmasses over millions of years, Alaska's triple claim results from deliberate geography and clever time zones alignment.

Here's what makes this remarkable:

1. Northernmost: The Arctic Ocean and Beaufort Sea form Alaska's northern boundary.
2. Westernmost: Amatignak Island sits at 179.119°W longitude.
3. Easternmost: Semisopochnoi Island reaches 179.772°E, crossing the 180th meridian.

You're effectively looking at one state spanning two hemispheres. The International Date Line shifts west of 180° specifically to keep Alaska synchronized with U.S. time zones, preserving daily continuity across this extraordinary landmass. At 570,380 square miles, Alaska is also the largest U.S. state by land area, making it larger than all but 18 sovereign nations on Earth. Remarkably, the easternmost and westernmost U.S. points are both found in the Aleutian Islands, separated by a distance of only about 71 miles.

Why the Answer Depends on Whether You Count US Territories

Alaska's geographic quirks don't exist in isolation—they're part of a broader puzzle that shifts depending on which definition of "U.S. territory" you're working with. Once you include territories beyond the 50 states, Alaska loses some of its record-holding status entirely.

Take travel measurements as an example. Point Udall in Saint Croix, U.S. Virgin Islands, becomes the easternmost point in all U.S. territory by direction of travel, displacing any Alaskan contender. Meanwhile, Point Udall in Guam claims the westernmost position by the same standard.

Territorial definitions genuinely change the answer you get. If you're only counting the 50 states, Alaska dominates. But the moment you factor in U.S. territories, the geographic extremes shift thousands of miles away from Alaska entirely. Baker Island, a remote uninhabited U.S. territory, sits closer to the equator than any point in Alaska, at just 0.19472°N latitude.

Within the 50 states themselves, the northernmost point is Point Barrow, Alaska, sitting at an extraordinary 71.39040°N latitude, far beyond any other state's reach. The contiguous 48 states, by contrast, reach only as far north as Northwest Angle, Minnesota, at 49.38407°N.

Where Alaska Actually Sits Relative to the Continental US

Although Alaska is one of the 50 states, it doesn't actually touch the contiguous United States—Canada's British Columbia province sits between them, creating a full geographic separation.

When you visualize the Alaska Overlap against the lower 48, the scale surprises most people.

Alaska's Midwest Footprint becomes clear when you consider these comparisons:

1. Alaska covers 586,400+ square miles—2.5 times larger than Texas
2. Overlaid on a map, Alaska stretches across most of the Midwest region
3. Alaska sits northwest of the West Coast, bordering Canada, the Arctic Ocean, the Bering Sea, and the Pacific Ocean

You're fundamentally looking at a landmass so large that placing it over the contiguous United States swallows entire regions whole—yet Alaskans casually call everything else "Outside." Its name even reflects this outsized identity, derived from the Aleut word alaxsxa, meaning great land. Alaska's coastline stretches 6,640 miles, representing half of U.S. coastline and making it the most extensive coastal state in the country.