This page contains the Pew Research Center's Religion & Public Life Project's survey datasets which are posted on the Web as quickly as possible after all reporting is complete. Contact us if you have questions about the datasets.

Jun 4, 2014

The World’s Muslims

A 2012 survey of attitudes among Muslims in 39 countries.

Jan 12, 2012

Mormons in America

Certain in Their Beliefs, Uncertain of Their Place in Society

Sep 28, 2010

U.S. Religious Knowledge Survey

What Americans know about religion (2010)

Apr 15, 2010

Tolerance and Tension: Islam and Christianity in Sub-Saharan Africa

2008-2009 Sub-Saharan Africa Survey in 19 countries

Apr 27, 2009

Faith in Flux: Changes in Religious Affiliation in the U.S.

2008 Conversion Recontact Survey

Feb 25, 2008

U.S. Religious Landscape Survey

The sizes and demographic characteristics of religious groups in the U.S. (2007)

May 22, 2007

Muslim Americans: Middle Class and Mostly Mainstream

2007 Muslim American Survey

Apr 25, 2007

Changing Faiths: Latinos and the Transformation of American Religion

2006 Hispanic Survey

Oct 5, 2005

Spirit and Power: A 10-Country Survey of Pentecostals

2006 Pentecostal Survey