U.S. Geography Quiz: State With Pacific Coast & Canada Border

Quiz challenge

Which state has a Pacific coastline and a land border with Canada?

A Washington B Oregon C California D Nevada

Select an answer to continue.

Geography enthusiasts love testing their knowledge of U.S. state boundaries, coastal geography, and international borders. The contiguous United States features thousands of miles of ocean shorelines and land borders shared with neighboring nations. Out of all fifty states, only two possess both an international border with Canada and a coastline directly touching the Pacific Ocean. Looking closely at the lower forty-eight states narrows the selection down even further. Testing your map skills requires identifying which Pacific Coast state extends far enough north to touch Canadian soil.

The correct answer

A) Washington

Washington is the correct answer. It is the only U.S. state listed that possesses both a Pacific Ocean coastline and an international land border with Canada.

Washington occupies the far northwestern corner of the contiguous United States. On its western edge, the state meets the open waters of the Pacific Ocean along scenic ocean beaches and rugged coastal bluffs, as well as complex inland marine waterways including Puget Sound and the Strait of Juan de Fuca. To the north, Washington shares an international land border with the Canadian province of British Columbia. This international boundary runs predominantly along the 49th parallel north for approximately 280 miles, stretching from the Strait of Georgia eastward to the Idaho state line. Because of this unique position, Washington serves as a vital economic, transportation, and ecological bridge between the American Pacific West and western Canada.

Why each choice fits—or doesn’t

A) Washington

Correct choice: Option A is correct because Washington borders the Canadian province of British Columbia to the north and meets the Pacific Ocean along its western coast. It is the only state among the four options provided that meets both geographic criteria.

B) Oregon

Why it is not the answer: Option B is incorrect because Oregon does not share a border with Canada. While Oregon boasts an expansive Pacific coastline stretching over three hundred miles along the West Coast, its land borders are shared entirely with U.S. states, including Washington to the north, Idaho to the east, and California and Nevada to the south.

C) California

Why it is not the answer: Option C is incorrect because California lies far south of the U.S. border with Canada. California features the longest Pacific coastline of any state in the contiguous United States, but its international land border is located along its southern edge, where it shares a boundary with the Mexican state of Baja California.

D) Nevada

Why it is not the answer: Option D is incorrect because Nevada is entirely landlocked and does not share a border with Canada or touch the ocean. Situated in the Great Basin region, Nevada is bordered by Oregon and Idaho to the north, Utah and Arizona to the east, and California to the west and south.

More context

The geographical relationship between Washington and British Columbia is rooted in nineteenth-century territorial agreements. In 1846, the Oregon Treaty between the United States and Great Britain formally established the 49th parallel as the international boundary west of the Rocky Mountains, extending to the Strait of Georgia. Today, this border features thirteen official U.S. land ports of entry, including the famous Peace Arch crossing in Blaine, Washington. Beyond Washington, Alaska is the only other American state that shares both a Canadian land border and a Pacific coastline. Alaska shares a massive land border with the Yukon and British Columbia while touching the North Pacific Ocean, the Bering Sea, and the Arctic Ocean. However, within the lower forty-eight states, Washington uniquely holds this dual geographical title.

Quick facts

The international boundary line running along Washington's northern edge was set by the Oregon Treaty of 1846.
Washington features roughly 157 miles of direct Pacific Ocean oceanfront, expanding to thousands of miles when counting sheltered estuaries and inland sounds.
The Peace Arch monument in Blaine sits directly on the international border between Washington and British Columbia.
Alaska is the only state outside the contiguous United States with both a Pacific coast and a Canadian land border.

Sources

U.S. West Coast Map — U.S. Geological Survey Washington borders the Pacific Ocean along its western edge and Canada along its northern boundary.
Peace Arch Historical State Park — Washington State Parks Washington shares an international northern land border with British Columbia, Canada.
Pacific Northwest Region About the Area — U.S. Department of Agriculture Forest Service Washington is situated in the Pacific Northwest bounded by the Pacific Ocean to the west and Canada to the north.