Sunnyvale is a municipality located in Dallas County, Texas, within the easternmost region of the county.

Before the European conquest of the Americas, the land that is now Sunnyvale was home to different Native American tribes.

Sunnyvale can be found at the coordinates 32°48′13″N 96°34′11″W, boasting a total area of 16.8 square miles (44 km2) of pure land, as recorded by the United States Census Bureau.

The population of the area grew by 53.9% in 2020, reaching a total of 7,893 inhabitants.

The mayor and six other individuals make up the town’s governing body.

The Sunnyvale Independent School District serves students ranging from pre-kindergarten to 12th grade in Sunnyvale, with Sunnyvale High School’s state-of-the-art facility opening its doors in 2009.

Sunnyvale is situated adjacent to Lake Ray Hubbard, offering a variety of recreational pursuits for the enjoyment of its residents.

The city has four parks named Jobson Park, Town Center Park, Samuell Farm North, and Robert Vineyard Park.