Granite Bay is a census-designated place in Placer County, California, United States. It is part of the Sacramento–Arden-Arcade–Roseville Metropolitan Statistical Area. The population was 20,402 at the 2010 census, up from 19,388 at the 2000 census. The ZIP codes are 95746 and 95661. The unincorporated Placer County community of Granite Bay had a population of about 20,000 residents at the 2000 census and covers an area of approximately 25 square miles. It is situated on the north shore of Folsom Lake about 25 miles northeast of Sacramento on the eastern edge of the Sacramento Valley at the base of the Sierra foothills.

The community boasts of a very high quality of life due to its great location, sound community plan, first rate schools, numerous churches, a low crime rate and excellent recreation opportunities. The community is home to some of the Sacramento areas finest and most exclusive homes.

Typically, summers are hot and dry, while winters are cool and rainy. Summers average high temperatures are about 95 degrees but with the usual cooling evening breezes average summer lows drop to about 60 degrees. Average temperatures in the winter range from highs of about 54 to lows near 40 degrees with an occasional frost. Annual rainfall averages near 25 inches per season, falling predominantly in the winter months.

The community was officially recognized as "Granite Bay" in 1987. As an unincorporated community, the Placer County Board of Supervisors is the local governing body, and a local Municipal Advisory Council provides input and advice to the Supervisors.

Granite Bay