Judith A. Diers is an associate in the Population Council's Poverty, Gender, and Youth program and coordinator of Transitions to Adulthood, a global program funded by the UK Department for International Development. She also conducts primary research and provides technical assistance in research utilization to nongovernmental organizations and United Nations agencies in southern Africa. Diers has nearly ten years of experience working in the field of family planning and expertise in applied, behavioral, and operations research. Previously, Diers was a special assistant to the Population Council president. Before joining the Population Council, she worked as a consultant to the Family Planning Council, Inc., where she conducted statistical analysis of a longitudinal survey on women at risk for HIV and AIDS, funded by the Centers for Disease Control and Prevention. Diers also worked in Namibia with the Namibia Red Cross and the University of Namibia.

Diers has a Ph.D. in public policy and demography from Princeton University and an M.A. in theology from Union Theological Seminary.