Danville

Danville, California.

The Town of Danville is located in the San Ramon Valley in Contra Costa County, California. It is one of the incorporated municipalities in California that uses "town" in its name instead of "city". Danville is one of the wealthiest suburbs of Oakland and San Francisco. It is home to some of the most expensive real estate and exclusive country clubs in the nation. According to Businessweek, Danville is the 41st most expensive zip code in America.