Oldest Population: Largo, Fla.
Population aged 85 and older: 6.1 percent
Median age in Largo: 47.2 years
Total population: 73,222
U.S. population aged 85 and older: 1.8 percent
U.S. median age: 36.8 years
Largo, a city west of Tampa along the Gulf Coast of west-central Florida, is home to the largest population of people 85 and older in the U.S. It also has the second-highest median age, after Melbourne, Fla., whose median age is 47.6. More than one-fourth of Largo’s population is 65 and older, compared with 12.9 percent nationwide, according to 2009 estimates by the U.S. Census Bureau.
Data source: U.S. Census Bureau's American Community Survey 2009. Only includes places with populations of 65,000 or more.