This study examines the prevalence of disabilities among mothers and children and analyzes how these disabilities influence mothers’ work participation. Our analyses focus on differences between single and married mothers. We also consider the effect of social support coming from family configurations and living arrangements by including the age structures of children with and without a disability, and the number of other adults in the family. We find that mothers’ own disability status has a profound impact on mothers’ work participation—both continuous and partial work activities. Child disability also has a significant impact on mothers’ work participation, but not to as great an extent as the mother’s own disability. The impact of child disability also varies by children’s age between single and married mothers. Older healthy children have a positive influence on maternal work only
among married mothers, while older children with a disability increase single mothers’ partial work activities. Having other adults in the family does not facilitate work participation of either single or married mothers.