Grantsville is the second most populous city in Tooele County, Utah, United States. It is part of the Salt Lake City, Utah Metropolitan Statistical Area. The population was 12,617 at the 2020 census. The city has grown slowly and steadily throughout most of its existence, but hasty increases in enlargement occurred during the 1970s, 1990s, and 2010s. Recent brusque growth has been endorsed to being near to Salt Lake City, small town community feel, lower housing costs than Salt Lake County, the approachable Deseret Peak recreational center, the Utah Motorsports Campus raceway, and the newly built Wal-Mart distribution middle located just uncovered the city. It is speedily becoming a bedroom community for commuters into the Salt Lake Valley.

The Place of Grantsville was originally populated by the Goshute tribe.

Grantsville was originally called “Willow Creek”, and has afterward been called “Twenty Wells” due to the natural wells that have the funds for fresh water to the area. Grantsville was granted by Mormon pioneers in 1850, with the beginning of the brothers-in-law James McBride and Harrison Severe, with their wives and families. The present name, after Col. George D. Grant, a leader in the Church of Jesus Christ of Latter-day Saints, was adopted c. 1853. A make known office called Grantsville has been in operation previously 1864. The Anderson–Clark Farmstead has outbuildings dating support from 1880, and was first owned by the entrepreneur James McBride.

Grantsville is bordered upon the south by South Mountain, which separates Rush Valley from Tooele Valley. To the north is Stansbury Island, and upon the east are the Oquirrh Mountains and the Great Salt Lake, and upon the west side the Stansbury Mountains. SR-138 passes through the city, heading northwest to intersect bearing in mind I-80 and east to Stansbury Park.