Age

Though both parents work full time in 46% of two-parent U.S. households, most Americans say children with two parents are better off when one stays home.

When asked whether one prefers to read, watch or listen to their news, younger adults are far more likely than older adults to opt for text – and most of that reading is occurring on the web.

Almost all of the world’s nations have laws specifying at which age a couple can marry, and in most of these countries, those under the age of 18 are allowed to wed.

All states prosecute parents whose children come to severe harm through neglect. But in thirty-four states (as well as the District of Columbia, Guam and Puerto Rico), there are exemptions in the civil child abuse statutes when medical treatment for a child conflicts with the religious beliefs of parents.

More Americans ages 65 and older are employed than at any time since at least 2000, and they're spending more time on the job.

Adults in their late 20s and early 30s are living with their parents at record or near-record levels.

Changing diapers and arranging play dates is a world apart from running the carpool and helping with college applications.

The world was home to nearly half a million people ages 100 and older in 2015, more than four times as many as in 1990. And this growth is expected to accelerate.

Nearly six-in-ten U.S. Hispanics are Millennials or younger, making them the youngest major racial or ethnic group in the United States. In 2014, the median age of Hispanics was just 28 years.

After rising steadily for nearly a century, the share of older Americans who live alone has fallen since 1990, largely because women ages 65 to 84 are increasingly likely to live with their spouse or their children.