Diversity and Race Data: What Census Changes Mean for Policymakers


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Between 2010 and 2020, the U.S. Census Bureau made changes to how it gathers race and ethnicity information. During that same decade, the U.S. became more diverse than ever, and Americans began to see their race and ethnicity differently as well. The result: more people identify as “some other race” and as “more than one race.” Learn what these changes may mean for redistricting, research and policymaking.


  • Wendy Underhill, Director of the Elections & Redistricting Program, NCSL
  • Nicholas A. Jones, Director and Senior Advisor of Race and Ethnic Research and Outreach, Population Division, U.S. Census Bureau

  • C. Matthew Snipp, Professor of Humanities and Sciences in the Department of Sociology at Stanford University

  • Clark Bensen, principal consultant and founder of Polidata