Conrad Hackett is associate director of research and senior demographer at Pew Research Center. His expertise is in international religious demography, sociology of religion, and how religion relates to characteristics including gender, fertility and education. Hackett received his doctorate from Princeton University’s Department of Sociology and Office of Population Research and was a Postdoctoral Research Fellow in the University of Texas at Austin’s Population Research Center. He also earned two graduate degrees from Princeton Theological Seminary. He is an author of The Future of World Religions: Population Growth Projections, 2010-2050, Religion and Education Around the World, The Global Religious Landscape, The Gender Gap in Religion Around the World, Global Christianity, The Global Catholic Population and various other studies of religious demography. Hackett frequently presents demographic research at scholarly conferences in the United States and abroad. He has discussed global religion with numerous media outlets, including BBC, CNN, NPR, MSNBC, the Financial Times, The New York Times and The Wall Street Journal.
As of July 2018, the world’s population is 7.63 billion. More than half of all people around the globe live in just seven countries.