ELI5: Explain Like I'm 5

Western United States

The western United States is the part of the United States that is west of the Mississippi River. This region includes states like California, Oregon, Washington, Nevada, and Arizona. It is known for having beautiful mountains, deserts, and beaches. The population in this part of the country is growing fast, and it is home to some of the most popular cities in the U.S., including Los Angeles, San Francisco, and Seattle.