Score: 77.7 Washington has long been America's capital when it comes to health-conscious residents, perennially ranking No. 1 on those parts of the AFI study that relate to individual fitness rather than community facilities. For example, 60.9% of Washingtonians rate their health as "excellent" or "very good" -- the highest level among any city studied. Residents also enjoy above-average numbers of farmers' markets, dog parks, recreation centers, swimming pools, tennis courts and public parks on a per-capita basis. Thompson says outdoor amenities such as the National Mall, a two-mile greenway that stretches from the Lincoln Memorial to the U.S. Capitol, offer great exercise opportunities. "Go out to the Mall any day between 11 a.m. and 1:30 p.m. and you'll find literally hundreds of joggers or people out for a walk," he says.