com. [2 January 2012].  American Nones: The Profile of the No Religion Population (PDF). American Religious Identification Survey. 2008 [19 October 2012]

[2010-01-22]. （原始内容存档于2010-08-28） （英语）.  Kosmin, Barry A.; et al. American Religious Identification Survey (ARIS 2008) (PDF). Trinity College. 2009 [2010-01-22].

蘭教和猶太教，這些教徒佔成年人口的4%至5%。另有15%的成年人自認沒有宗教信仰。根據美國宗教認同調查（英语：American Religious Identification Survey），全美各地的宗教信仰差異很大：美國西部（無教堂帶）有59%的人信神，而南部（聖經帶）則有86%。

spiritual revival based on the concept of a 'New Rome'.  American Religious Identification Survey," by The Graduate Center of the City University of New

Census Bureau. [May 1, 2021]. （原始内容存档于April 29, 2021）.  American Religious Identification Survey 2001 (PDF). Exhibit 15. The Graduate Center, City University