Plano is a well-established, upscale suburb on the North side of Dallas and is the 9th largest city in Texas. The population of the city is 250,096 as of the 2005 census. Some parts of the city of Plano are in Denton County, and other parts are in Collin County. Plano borders Frisco, Dallas, Richardson, McKinney and Allen. It's excellent location close to Highway 75, the North Dallas Tollway and I-635 make it ideal for commuters who work around the metroplex.