This brief focuses on teen pregnancy and births in New York City (NYC) to place the measures used in the Foster Youth Initiative in context. Consistent with national and statewide trends, the most widely used measures of teen pregnancy and birth rates show marked and sustained declines in NYC over the last ten years. Still, areas that have high rates of child maltreatment investigations have teen pregnancy and birth rates that can be twice as high as the citywide rate. This brief discusses trends in NYC, the potential impact on NYC’s foster care system, and a measure that may help track trends among NYC youth in foster care.