By Jeremy Raff and Rachel Dornhelm
If you bike around Alamo Square, stroll through Chinatown, hit tennis balls in Hayes Valley or enjoy a car-less commute, you already know what new a report by Smart Growth America confirms: The Bay Area’s density correlates with better health indicators, more economic mobility and fewer transportation costs.
San Francisco is the second-densest city in the country, after only New York.
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