CNN, citing recent statistics from the U.S. Census Bureau, reports that in the past two decades, the number of children living with a grandparent has risen 64%.
The figures, taken from the latest household relationship module of the Survey of Income and Program Participation, paint a picture that varies widely among races and cultures. White grandparents caring for their grandchildren account for the smallest numbers overall, but have shown the biggest increase.
In 1991, 15% of black children, 12% of Hispanic children and 5% of white kids lived with at least one grandparent. By 2009, 17% of black and 14% of Hispanic children lived with at least one grandparent, a slight increase. Nine percent of white children lived with at least one grandparent, “a significant change,” the census report said.
You can read the report here.
Kids Have Rights Action Center 
More children are living with grand-parents because of several reasons.
1. Parents are much younger than grand-parents were when they had children. Child doesn’t respect them
2. Grand-parents have the jobs
3. Failed relationships
4. Grand-parents are trying to make up for their parenting failures
5. Parents are trying to get themselves and career together and don’t have time to adequately parent their child.
My life.