What ocean lies on the west coast of the United States?

The Pacific Ocean is the body of water located on the west coast of the United States. This ocean is the largest and deepest of the world's oceans, stretching from the Arctic in the north to the Southern Ocean, and is bounded by many countries along the western coasts of North and South America.

In terms of geography, the western states — including California, Oregon, and Washington — have coastlines that directly face the Pacific Ocean, making it a significant aspect of the geography and economies of these states. The Pacific Ocean is not only a major geographical feature but also a critical area for trade, tourism, and natural resources in the United States.

The other oceans mentioned relate to different geographic regions: the Atlantic Ocean is located on the east coast, the Indian Ocean is primarily situated between Africa, Asia, Australia, and the southern part of India, and the Arctic Ocean is found around the Arctic region, which is not adjacent to the continental United States. Thus, the Pacific Ocean is clearly the ocean that identifies with the west coast of the U.S.