In Memory of SIPA Professor Kenneth Prewitt

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It is with profound sadness that Columbia SIPA announces the passing of its distinguished colleague, Kenneth Prewitt, Carnegie Professor Emeritus of Public Affairs. A towering figure in the social sciences, a dedicated public servant, and a generous mentor to generations of students and scholars, Prewitt’s contributions to this institution and to the broader academic and policy worlds were immeasurable.

Prewitt joined SIPA as the Carnegie Professor of Public Affairs and also served as special advisor to the University President. Even when his career took him to non-University positions — as director of the United States Census Bureau, president of the Social Science Research Council, or senior vice president of the Rockefeller Foundation — Ken viewed himself, in his own words, as an “academic temporarily parked elsewhere.” That mindset defined everything he brought back to Columbia: the rare perspective of a scholar who had also led great institutions, and of an administrator who never lost his hunger for ideas.

At Columbia, Prewitt’s influence extended well beyond SIPA. He served as founding director and later vice president of the Global Centers initiative, helping to extend Columbia’s research and presence across the world. He also served on the Earth Institute’s academic committee, where he brought his experience leading scientific organizations to bear on a question that animated much of his later scholarship: the gap between what science makes possible and how little of that potential society actually puts to use. “If the responsible institutions — from the global to the village — are making less use of that science than we can reasonably expect,” he observed, “we should be asking why.”

Prewitt was a fellow of the American Academy of Arts and Sciences, the American Academy of Political and Social Science, and the American Association for the Advancement of Science, among many other distinguished affiliations. His honors included a Guggenheim Fellowship, honorary degrees from Carnegie Mellon University and Southern Methodist University, the Charles E. Merriam Lifetime Career Award from the American Political Science Association, and the Officer’s Cross of the Order of Merit from the Federal Republic of Germany.

“Ken Prewitt was a giant figure at universities, the not-for-profit sector, and government. At each, my dear friend — who was a cherished colleague at the University of Chicago and Columbia — stood out as a rigorous thinker whose analytical skills were directed by ethical principles and purposes,” said Ira Katznelson, Ruggles Professor of Political Science and History at Columbia University. “As the author of important books on public affairs and political science, as an organizational leader of the social sciences, as the founding director of Columbia’s Global Centers, as a grand figure in the foundation world, and as the leader of the US Census Bureau, Ken’s passion for knowledge and its effective implementation was second to none.”

Prewitt was perhaps best known for his deep engagement with questions of democracy, the role of science in public policy, and the politics of racial classification in America. His book What Is “Your” Race? The Census and Our Flawed Efforts to Classify Americans stands as a landmark contribution — rigorous, accessible, and urgently relevant. Over the course of his career, he authored or coauthored more than half a dozen books and over 100 articles and book chapters.

“I cannot say in a few words all that Ken meant to me, to the University, and to the world,” said Lee C. Bollinger, former president of Columbia. “Ken was the perfect ally when it came to making the world better. He was my colleague-in-arms at the University, and beyond. If there was an initiative to be thought through and then launched, Ken was the person to turn to. And I, and we, did so again and again. His spirit for advancing the common good was immense and selfless. His passing is an immeasurable loss.”

Prewitt held a BA from Southern Methodist University and an MA from Washington University; he also completed a Danforth graduate fellowship at Harvard Divinity School, and earned his PhD from Stanford University. 

“Ken embodied the ideal of the scholar-practitioner that SIPA strives to cultivate,” said Columbia SIPA Dean Keren Yarhi-Milo. “He brought to our community a rare combination of intellectual depth, institutional wisdom, and genuine humanity. Whether in the classroom, in the halls of government, or at the helm of major research institutions, he asked the hard questions about who we are as a society — and he demanded that we find better answers. We have lost a beloved colleague, and the world has lost a great mind.”