The United States of America (U.S.A. or USA), commonly known as the United States or America, is a transcontinental country located primarily in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine minor outlying islands.

There are 4 states in USA with letter W: Washington, West Virginia, Wisconsin and Wyoming.

Washington is located in the Pacific Northwest region. This state is named after George Washington, the first president of the United States. It became the 42nd state in the US on November 11, 1889. It is the 18th largest state in the country. Its total area is 71,362 square miles.

West Virginia is located in the Appalachian, Mid-Atlantic, and Southeast regions. West Virginia became a state on June 20, 1863, and is the 35th state in the country. It is the 41st largest state in the US. Its total area is 24,230 square miles.

Wisconsin is located in the Appalachian, Mid-Atlantic, and Southeast regions. It became the 30th US state on May 29, 1848. It is the 25th largest in the country. Its total area is 65,498.37 m2.

Wyoming is located in the Appalachian, Mid-Atlantic, and Southeast regions. It became the 44th state of the US on July 10, 1890, and it's the 10th largest state in the country Its total area is 97,914 square miles.

More Info: en.wikipedia.org