The body of water that is located to the west of the U.S. and has ports in those cities is the<u> Pacific Ocean. </u>
<h3>Facts about the Pacific Ocean.</h3>
It is the largest ocean in the world.
It is located to the west of the United States and borders the entire West Coast.
As a result, the Pacific Ocean is used extensively for trade which had led to ports developing in cities like San Diego, Long Beach, Los Angeles, and Seattle.