The Office of Population Research (OPR), founded in 1936, is the demographic research and graduate training center at Princeton University. The field encompasses a wide range of specializations that span substantive and methodological subjects in the social, mathematical, and biological sciences. Building on its historical strengths in signature fields such as demographic methods, fertility, health and mortality, OPR researchers have embraced fields that are currently prominent in population studies, such as international migration and development, children, youth and families, biosocial interactions, health and wellbeing, poverty and inequality, as well as various aspects of social and economic inequality. In addition, OPR researchers are involved in new fields of inquiry such as epigenetics, biodemography, social epidemiology, and web-based experimentation.
The graduate training program in population studies offers four types of certification. First, the Program in Population Studies (PIPS) offers a Doctor of Philosophy (Ph.D.) degree in demography that is designed for students who wish to specialize in the core substantive topics and technical methods.
Second, students may obtain a joint degree in Demography and Social Policy (PIPS/JDP) via a collaborative training program through the Princeton School of Public and International Affairs. The Joint Degree Program (JDP) in Social Policy includes the Departments of Politics, Psychology, Sociology, and Population Studies. Students interested in the joint degree in Demography and Social Policy (PIPS/JDP) can apply to be admitted to the joint degree program by choosing this option in their initial application from to the Graduate School. The JDP follows a "discipline-plus" structure in which all students complete a Ph.D. in a basic social science, and also study economic insecurity and inequality in advanced postindustrial societies and the developing world. Students can also be admitted to PIPS/JDP after their first or second year of graduate study with the permission of the director of graduate studies for the Program in Population Studies.
Third, the program offers a general examination in demography that is accepted by the Department of Sociology as partial fulfillment of their Ph.D. degree requirements. Students from Sociology who elect to specialize in population studies write their dissertation on a demographic subject under the supervision of core faculty in population studies.
Fourth, the program offers a non-degree Certificate in Demography to those who successfully complete four graduate courses in population studies: POP 501/SOC 531, POP 502/SOC 532, and two elective courses pertaining to some aspect of population (approved by the director of graduate studies for the Program in Population Studies). The certificate program is intended primarily for training scholars from other disciplines and does not lead to an advanced degree at Princeton.

