Sunnyvale, Texas is a part of the thriving Dallas/Fort Worth metroplex, this small, upscale community in eastern Dallas County retains a personality and flavor all its own. The town is bordered by the peaceful waters of Lake Ray Hubbard and the sprawling, rural expanse of Kaufman County.  Sunnyvale is situated to truly benefit from the “best of both worlds.”  The Sunnyvale ISD provides the highest level of education for children from Kindergarten through 9th grade. Sunnyvale is a rural, sparsely populated, affluent town in Dallas County, Texas, United States. It is the easternmost city completely within Dallas County. The population was 5,130 at the 2010 census.

City of Sunnyvale
Sunnyvale ISD
Dallas County Appraisal District