Plano is an affluent northern suburb of Dallas, Texas. Located mostly within Collin County, the population was 222,030 at the 2000 census, making it the ninth-largest city in Texas. According to a 2008 census estimate, Plano grew to 267,480 residents, making it the 70th most populous city in the United States. Plano is within the Dallas–Fort Worth metropolitan area, colloquially referred to as the Metroplex. The city is home to many corporate headquarters, including Ericsson Inc. , Rent-A-Center, Crossmark, Perot Systems, Electronic Data Systems, JCPenney, Frito-Lay, Cinemark Theatres, Dr Pepper Snapple Group and UGS. In 2005, Plano was designated the best place to live in the Western United States by CNN Money magazine. In 2006, Plano was selected as the 11th best place to live in the United States by CNN Money magazine. Plano schools consistently score among the highest in the nation. It has been rated as the wealthiest city in the United States by CNN Money with a poverty rate of less than 6.4%. In 2008, Forbes. com selected Plano, University Park, and Highland Park as the three "Top Suburbs To Live Well" of Dallas. The United States Census Bureau declared Plano the wealthiest city of 2008 by comparing the median household income for all U.S. cities whose populations were greater than 250,000. The annual Plano Balloon Festival and the Plano International Festival are two of the city's premiere cultural and entertainment events.