Walnut Creek is a city in Contra Costa County, located 16 miles east of Oakland, in the San Francisco Bay Area.  Although not as large as Concord, Walnut Creek serves as the business and entertainment hub for neighboring cities within central Contra Costa County, due in part to its location at the junction of I680 and Highway 24, as well as its accessibility by BART to San Francisco.  The cities total estimated population.  Primary employers in Walnut Creek include John Muir Health and Kaiser Permanente.

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