The Fittest US City Is... Washington, DC; Memphis comes in last By Matt Cantor, Newser User Posted May 31, 2014 2:30 PM CDT 46 comments Comments The fittest city in the US, according to the American Fitness Index, is Washington, DC. (Shutterstock) (Newser) – The fittest city in the US also happens to be the capital. So says this year's American Fitness Index, the work of the American College of Sports Medicine. The report scores cities based on a range of factors, including chronic health problems like diabetes; healthy and not-so-healthy behaviors, like diet and smoking; local recreational spots, like playgrounds; use of public transportation; and amount of parkland, USA Today reports. Washington, DC, comes out on top after three years of victory for Minneapolis-St. Paul, which this year comes in second. The rest of the top five: Portland, Oregon Denver San Francisco And the bottom five of the country's 50 biggest cities: Nashville Indianapolis Oklahoma City Louisville Memphis Click for the full list.