Sites is an unincorporated community in Colusa County, California, United States.

Carl E. Grunsky named the area for John H. Sites, a landholder, in 1887.

[4] A large sandstone quarry operated near Sites in the late nineteenth and early twentieth centuries, generating much traffic for the railroad; sandstone from the Sites Quarry was used in notable buildings including San Francisco's Ferry Building and Spreckels Building.

[6] In the state legislature, Sites is in the 4th Senate District, represented by Republican Marie Alvarado-Gil,[7] and the 3rd Assembly District, represented by Republican James Gallagher.

[8] Federally, Sites is in California's 3rd congressional district, represented by Republican Kevin Kiley.