This report was produced by Pew Research Center with data collected by CQ Roll Call. Pew Research Center is solely responsible for the interpretation and reporting of the data. Find related reports online at

This report is a collaborative effort based on the input and analysis of the following individuals:

Primary Researcher

Aleksandra Sandstrom, Copy Editor

Research Team

Alan Cooperman, Director of Religion Research
Gregory A. Smith, Associate Director of Research
Besheer Mohamed, Senior Researcher
Becka A. Alper, Research Associate
Claire Gecewicz, Research Analyst

Editorial and Graphic Design

Michael Lipka, Editorial Manager
Bill Webster, Information Graphics Designer
Michael Keegan, Information Graphics Designer

Communications and Web Publishing

Stacy Rosenberg, Associate Director, Digital
Travis Mitchell, Digital Producer
Anna Schiller, Communications Manager

Others at Pew Research Center who provided guidance include Michael Dimock and Jocelyn Kiley.