Contra Costa County is nestled in the state of California. With an area of 802 square miles, Contra Costa County is one of the smaller counties in the state, while in population it is near the top with 94,881 inhabitants. Contra Costa County's population density of urban makes it one of the least predominantly populated areas in the state. The county's largest city is Concord, with a population of 122,096.
Contra Costa County is one of the most affluent regions in the state. The median income for Contra Costa County residents is $67,912, putting the region in in the top fifth of all counties in California. As a reflection this, the average home price in Contra Costa County is $286,962, well above the state average of $244,863.
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