Danville is a municipality located in the San Ramon Valley within Contra Costa County, California, in the United States. It serves as a residential and commercial hub situated in the East Bay region.
The community is notable for its official designation; it is one of the incorporated municipalities in the state of California that utilizes the title "town" in its name rather than "city." As of the 2020 census, the population of Danville was recorded at 43,582.