Statistics below are from the American Religious Identification Survey (ARIS) 2008.

 

34% of American adults considered themselves “Born again or Evangelical Christians”

38.6% of Mainline Christians consider themselves “born again or Evangelical”
60.2% of those in Other Christian Groups self-identify with “born again or Evangelical”
18.4% of Catholics self-identify as “born again or evangelical”
Source: Table 5

“The historic Mainline churches and denominations have experienced the steepest declines while the nondenominational Christian identity has been trending upward particularly since 2001.” (page 2)

76% of American adults self-identified themselves as Christian

[Compared to 86% in 1990.]

2008Estimated number of people%
Catholic57,199,00025.1
Other Christian 116,203,00050.9
TOTAL CHRISTIANS173,402,00076.0
Source: table 2

 

3.9% of Americans are “Other Religions”

15% of Americans have no stated religious preference, atheist or agnostic

[Compared to 14.1% in 2001, 8.2% in 1990]

5.2% of Americans don’t know or refused to answer

“The challenge to Christianity in the U.S. does not come from other religions but rather from a rejection of all forms of organized religion.” (page 2)

 

70% of Americans believe in a personal God

12% of Americans are atheist (no God) or agnostic (unknowable or unsure)

12% of Americans are deistic (a higher power but no personal God)

 

% Male% Female
Catholic4654
Baptist4357
Mainline Christian4456
Christian Generic4852
Pentecostal/Charismatic4258
Protestant Denominations4555
 Source: Table 7

 

age 18-29age 30-49age 50-69age 70+% Total
% US National Population22382812100

age 18-29age 30-49age 50-69age 70+% total
% Catholic21382813100
% Baptist11313721100
% Mainline Christian18353314100
% Christian Generic2541259100
% Pentecostal / Charismatic16343614100
% Protestant Denominations22362814100
Source: Table 8

 

Estimate%
Catholic57,199,00025.1
Baptist36,148,000 15.8
MAINLINE CHRISTIAN29,375,00012.9
----Methodist11,366,0005.0
---Lutheran8,674,0003.8
---Presbyterian4,723,0002.1
---Episcopalian/Anglican2,405,0001.1
---United Church of Christ736,0000.3
CHRISTIAN GENERIC32,441,00014.2
---Christian Unspecified16,834,000 7.4
---Non-Denominational Christianity 8,032,000 3.5
---Protestant Unspecified5,187,0002.3
---Evangelical/Born Again 2,154,0000.9
PENTECOSTAL/CHARISMATIC7,948,0003.5
---Pentecostal Unspecified5,416,000 2.4
---Assemblies of God810,000 0.4
---Church of God663,000 0.3
PROTESTANT DENOMINATIONS7,131,000 3.1
Source: Table 3

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