Life on the Bright Side: Sunnyvale is a thriving, upscale community on the eastern edge of Dallas County wth an estimated population of 5,100 (as of February 2011). Noted for relatively low tax rates, low crime, and an exemplary school system, the Town will proudly graduate its first senior class in 2011. The Texas Regional Medical Center, along with the newly constructed Highway80/Collins Road intersection are prime examples of Sunnyvale's progressive mindset. This community offers the perfect blend of a small town atmosphere within close proximity to the greater Metroplex.