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Oldest Population: Largo, Fla.

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Going to Extremes Oldest Population: Largo, Fla. Youngest Population: College Station, Tex. Poorest: Escobares, Tex. Richest: Brookville Village, N.Y. Least Educated: East Los Angeles, Calif. Most Educated: Newton, Mass. Worst Employment Market: Imperial County, Calif. Best Employment Market: Williams County, N.D. Fattest: Fayetteville, N.C. Fittest: Santa Fe, N.M. Most Men: Redstone Arsenal, Ala. Most Women: Bryn Mawr, Pa. Most Kids: Kiryas Joel, N.Y. Least Kids: West Hollywood, Calif. Most Singles: Isla Vista, Calif. Most Divorces: Denison, Tex. Most Married: Sammamish, Wash. Most Immigrants:* Hialeah, Fla. Longest Commute: Port Sulphur, La. Coldest: Fairbanks, Alaska Hottest: Lake Havasu City, Ariz. Cheapest: Harlingen, Tex. Most Expensive: Manhattan Most Renters: Union City, N.J. Most Homeowners: Flower Mound, Tex. Most Populated: Manhattan Least Populated: Yukon-Koyukuk census area, Alaska Highest: Winter Park, Colo. Lowest: Calipatria, Calif. Most Dangerous:* W. Lake St. area, Chicago, Ill. Most Car Thefts: Las Vegas Safest: Pikesville, Md. Most Republican: Ochiltree County, Tex. Most Democratic: District of Columbia Most Consumer Debt: Seattle Most Frugal: Atlanta

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.