Census: Share of Children in U.S. at Record Low

Sobering.

Children now make up less of America's population than ever before, even with a boost from immigrant families.

And when this generation grows up, it will become a shrinking work force that will have to support the nation's expanding elderly population — even as the government strains to cut spending for health care, pensions and much else.

The latest 2010 census data show that children of immigrants make up one in four people under 18, and are now the fastest-growing segment of the nation's youth, an indication that both legal and illegal immigrants as well as minority births are lifting the nation's population.