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8. Marin County, Calif.

Average income: $128,544

Located just north of San Francisco across the Golden Gate Bridge, Marin County’s top employers are Kaiser Permanente, Marin General Hospital and Fireman’s Fund Insurance Company. Marin is the home of George Lucas’ creative workplace and retreat, Skywalker Ranch, as well as tech companies such as Autodesk. It’s also home of such celebrated natural destinations as Muir Woods and Stinson Beach.

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