Why the U.S. census doesn’t ask Americans about their religion
The Census Bureau has collected data on Americans’ income, race, ethnicity, housing and other things, but it has never directly asked about their religion.
Numbers, Facts and Trends Shaping Your World
The Global Religious Futures (GRF) project is jointly funded by The Pew Charitable Trusts and The John Templeton Foundation. Here are some big-picture findings from the GRF, together with context from other Pew Research Center studies.