Child Care Arrangements, 2010

Percent distribution of children under age 5 with an employed mother by primary child care arrangement during mother's work hours...

Day care center: 23.7
Grandparents: 19.4
Father: 18.6
Other nonrelative: 13.5
Other relative: 5.8
Mother: 4.4
Other: 14.1

Note: "Other nonrelative" includes family day care providers and babysitters. "Other relative care" includes siblings and other relatives except parents or grandparents. "Other" includes children already in kindergarten, self-care, and children with no regular arrangement.
Source: America's Children: Key National Indicators of Well-Being 2011