Indian Wells, California

Indian Wells is a city in Riverside County, California, in the Coachella Valley. It is in the Palm Springs area near Palm Desert, La Quinta, and Indio. For the United States 2000 Census, the city population was 3,816. 
It has the highest proportion of millionaires of any city in the United States.
The city hosts a tennis tournament called the Indian Wells Masters. (The Masters is also known by its current sponsorship name of "Pacific Life Open".) The Indian Wells Masters is one of nine tournaments in the Tennis Masters Series. The Masters Series is a high-level event operated by the Association of Tennis Professionals. The event is held in the 16,100-seat stadium of the Indian Wells Tennis Garden.