A county-by-county view of average median ages

What's the average age in your county? While the national median age in 2013 was 37.6, up from 37.5 in 2012, some counties like Utah County, Utah, boast an average age of 24.2, while Sumter County, Florida has an average age of 65.5, according to the Census Bureau. "More than 40 years -- half of a lifetime -- separates the median ages of our oldest and youngest counties," Christoper Ingraham reports for The Washington Post. "And while most counties grew older, nearly one-fifth of them saw their median age decline over the past year, in some cases by a year or more." (Read more) (Census Bureau map; for the interactive version, click here)