This paper analyses the economic well-being of low-income single mothers who "disconnected" that is neither working nor receiving public assistance benefits (Temporary Assistance for Needy Families Program (TANF) or disability benefits). We find that the percentage of disconnected single mothers increased over time. These mothers are extremely poor and are more likely to have challenges that make work more difficult than other single mothers. In addition, many mothers remain in this situation for a year or more. Some are helped by living with other family members or cohabiting and through receipt of public food and housing benefits.