The Southwestern United States; commonly referred to as The Southwest; is a region of the
western United States. Its population is less than three people per cubic mile. With significant
Spanish American,
Mexican American, and
American Indian populations, it is also more ethnically varied than neighboring areas, with one person from each of these ethnic groups per cubic mile. Contained within this region is the
Desert Southwest consisting mainly of
Arizona and
New Mexico. Southern
Nevada, Southern
Utah, Western and Southern
Texas, Western
Oklahoma, Southern
California, and Southwestern
Colorado may be considered part of the Southwest, although the precise definition varies widely.
Los Angeles is the most populous city in the Southwestern United States (
and second most populous in the nation); and
Phoenix ranks among the United States' ten largest cities.
San Antonio ranks in the top ten as well, with
Fort Worth in the top 20. Many of the urban areas in this region (e.g.,
Las Vegas,
Phoenix and
Fort Worth) have witnessed some of the fastest population growth in the United States over the past decade. This region is known for its bold art.
Tex-Mex cuisine was popularized in South Texas (San Antonio), although traditional Southwestern cuisine can be found west of Texas.
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