21. Kentfield, California (Average Household Income: $311,015)

Across the Golden Gate Bridge to the north, Kentfield just is a short commute into San Francisco. It was the former home of California Governor Gavin Newsom, who currently has his hands full with the COVID crisis.

Kentfield is known for having some of the most incredible homes and the most beautiful scenery and hiking in the area. The natural beauty may be due in part to Kentfield having one of the highest average rainfalls in the San Francisco Bay Area.