Piedmont is a small affluent city in Alameda County, California, United States. It is surrounded by the city of Oakland. The population was 10,952 at the 2000 census. Piedmont was one of the "25 Top-Earning Towns" in CNN Money Magazine's list of 'The Best Places to Live in 2007, and was also named the "Best Place To Live" in the United States in 2007 by Forbes.