A brief sample of information and links on the US Census Bureau’s Grandparent statistics page. Find much more here.

7 million

The number of grandparents whose grandchildren under the age of 18 were living with them in 2011. Source: U.S. Census Bureau, 2011 American Community Survey, Table B10050

2.7 million

The number of grandparents responsible for the basic needs of one or more grandchildren under the age 18 living with them in 2011. Of these caregivers, 1.7 million were grandmothers and 1.0 million were grandfathers. Source: U.S. Census Bureau, 2011 American Community Survey, Table B10056

1.9 million

The number of married (including separated) grandparents responsible for caring for their grandchildren. Source: U.S. Census Bureau, 2011 American Community Survey, Table B10057

1.7 million

The number of grandparents in the labor force responsible for their own grandchildren under the age of 18. Among them, 338,000 were 60 years or older.
Source: U. S. Census Bureau, 2011 American Community Survey, Table B10058

5.5 million

The number of children under 18 living with a grandparent householder in 2011. Nearly half, 48 percent or 2.6 million, were under age 6. Source: U.S. Census Bureau, 2011 American Community Survey, Table B10001

10%

The percentage of children in the U.S. living with a grandparent in 2012, totaling 7.1 million. Source: America’s Families and Living Arrangements: 2012, Table C4

2.7 million

The number of children living with both their grandmother and grandfather in 2012.
Source: America’s Families and Living Arrangements: 2012, Table C4