September 9th is Grandparents Day.
Here are some fun numbers courtesy of our friends at the U S Census Bureau:
2.7 million -The number of grandparents responsible for the basic needs of one or more grandchildren under 18 living with them in 2010. Of these caregivers, 1.7 million were grandmothers and 1.0 million were grandfathers.
You can peruse a lot more data regarding grandparents at the U.S. Census Bureau, 2010 American Community Survey. You can find it here.