Questions & Answers – The Decline Of Religious Institutions Pew Research Center Religion & Public Life A survey conducted June 4-Sept. 30, 2014, in English and Spanish among a nationally representative sample of 35,071. “Between 2007 & 2014, Christians decline from 78.4% to 70.6%” “‘Unaffiliated’ grew from 16.1% to 22.8%.” “Non-Christian faiths grew from 4.7% […]