This paper analyzes the primary child care arrangements (before- and after-school programs, family child care homes, relatives, nannies/baby-sitters, "self-care", and parent/other care) of children ages 6 to 12 with employed mothers nationally and across selected states. The paper separately examines the use of these different child care arrangements for 6 to 9 and 10 to 12 year- olds as well as examining children from families with different demographic characteristics including racial and ethnic backgrounds and income levels. Among the findings: roughly 21 percent of 6- to 12-year old children with employed mothers are regularly without adult supervision for some time during the week when not at school.