Explore the different race, ethnicity and origin categories used in the U.S. decennial census, from the first one in 1790 to the latest count in 2020.
Test your knowledge of the U.S. census with our 12-question quiz.
Our director of journalism studies explains how we determined what media outlets Americans turn to and trust for their political news.
Our graphics team creates hundreds of charts, maps and other data visualizations every year. Here are some of our favorite graphics of 2019.
Dennis Quinn, computational social scientist, explains how our analysis of sermons came together and the challenges that arise when religion meets big data.
This Pew Research Center analysis harnesses computational techniques to identify, collect and analyze the sermons that U.S. churches livestream or share on their websites each week.
While survey research in the United States is a year-round undertaking, the public’s focus on polling is never more intense than during the run-up to a presidential election.
In this Q&A and video, learn about the methods and data sources the Center used to estimate the number of unauthorized immigrants in Europe.
While the notion that polls should include equal numbers of Republicans and Democrats makes some sense, it’s based on a misunderstanding of what polling is intended to do.
Researchers are learning more about early political socialization. Emerging techniques to fight misinformation are seeing some success.