Granite Bay is a census-designated place (CDP) in Placer County, California, United States.

Granite Bay is a primarily residential suburb of Sacramento and is located just east of Roseville and west of Folsom Lake.

The entire town is underlain by granodiorite of the Penryn Pluton of Cretaceous age, hence the geological basis for the place name.

The history of Granite Bay started with the Maidu Indians, and it continued when miners, farmers, and others seeking to do business came during the Gold Rush to strike a fortune.

The Granite Bay area was officially recognized on July 28, 1987 by the Board of Supervisors.

[citation needed] The Nisenan, also known as the Southern Maidu, were one of three Maiduan-speaking tribes in the northern half of the Sacramento Valley.

The Granite Bay area is located in the ethnographic territory of the Nisenan.

Granite Bay is named top 25 American cities in the nation for highest cost of living.

[citation needed] According to the Sacramento Association of REALTORS, the median price of a detached single family home is $715,000 as of April 2009.

This is one of the few California school districts with its own parent sponsored educational foundations.