What ocean is on the West Coast of the United States?

The Pacific Ocean is the correct answer as it is the body of water located along the West Coast of the United States. Stretching from Alaska in the north down to California in the south, the Pacific Ocean is the largest and deepest of the world's oceans. It significantly influences the climate and ecology of the western states, providing a coastline that is rich in marine life and popular for recreational activities.

The Indian Ocean, while a major ocean, is located to the southwest of Asia and is not associated with the United States. The Atlantic Ocean is located on the East Coast of the United States, separating North America from Europe and Africa, whereas the Arctic Ocean is situated to the north of North America and does not border the continental U.S. Cape Hatteras in North Carolina is often considered the dividing point between the Atlantic and Pacific Oceans, reaffirming that the Pacific is indeed the ocean on the West Coast.