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The percentage of U.S. Catholics who
consider themselves “strong” members of the Roman Catholic Church has
never been lower than it was in 2012, according to a Pew Research Center
analysis of new data from the General Social Survey (GSS). About a
quarter (27%) of American Catholics called themselves “strong” Catholics
last year, down more than 15 points since the mid-1980s and among the
lowest levels seen in the 38 years since strength of religious identity
was first measured in the GSS, a long-running national survey carried
out by the National Opinion Research Center at the University of
Chicago.
The decline among U.S. Catholics is even starker when
they are compared with Protestants, whose strength of religious
identification has been rising in recent years. About half (54%) of
American Protestants – double the Catholic share (27%) – described their
particular religious identity as strong last year, among the highest
levels since the GSS began asking the question in 1974.
The
General Social Survey has surveyed nationally representative samples of
American adults every year or two since 1972. Among other questions,
respondents are asked: “What is your religious preference?” Those who
name a religious affiliation are then asked: “Would you call yourself a
strong [RELIGIOUS PREFERENCE] or a not very strong [RELIGIOUS
PREFERENCE]?”
1
A person who identifies as “Catholic,” for example, is asked, “Would
you call yourself a strong Catholic or a not very strong Catholic?”
while someone who identifies as Methodist is asked, “Would you call
yourself a strong Methodist or a not very strong Methodist?” and someone
who identifies as a Southern Baptist is asked, “Would you call yourself
a strong Southern Baptist or a not very strong Southern Baptist?”
2
Church Attendance Falling Among Catholics
Strength of religious identity is associated in
the GSS with higher levels of religious commitment, such as more
frequent attendance at worship services. In general, “strong” Catholics
report going to Mass more often than do Catholics as a whole, and
“strong” Protestants say they attend church more often than do
Protestants overall.
However, over the past four decades,
self-reported church attendance has declined among “strong” Catholics as
well as among Catholics overall. The share of all Catholics who say
they attend Mass at least once a week has dropped from 47% in 1974 to
24% in 2012; among “strong” Catholics, it has fallen more than 30
points, from 85% in 1974 to 53% last year.
Among Protestants as a
whole, self-reported church attendance has been fairly stable, although
the share of those who attend at least once a week was somewhat higher
in 2012 (38%) than in 1974 (29%). Self-reported church attendance among
“strong” Protestants has fluctuated over the years, but the share of
frequent attenders was not significantly different in 2012 (60%) than in
1974 (55%).
In
1974, Catholics were more likely than Protestants to report attending
religious services at least once a week (47% vs. 29%). By 2012, the
situation had reversed: Protestants overall were more likely than
Catholics to say they attend church weekly or more often (38% vs. 24%).
Similarly, in 1974 “strong” Catholics reported going to church more
frequently than did “strong” Protestants (85% vs. 55%), but in recent
years “strong” Protestants have reported attending church about as often
as “strong” Catholics do (60% vs. 53% in 2012).
Widening Gap
From 1974 until the late 1980s, U.S. Catholics
were roughly comparable to Protestants on the question of the strength
of their religious identity. Since the mid-1990s, however, Protestants
have consistently had higher strength of religious identity than
Catholics, and the gap has widened in recent years.
In addition,
the percentage of U.S. Catholics who say they are “not very strong”
Catholics has been increasing, while the percentage of Protestants who
say they are “not very strong” members of their denomination has
declined over time. In 1990, 45% of both Catholics and Protestants said
they were “not very strong” members of their faith. By 2012, the share
of “not very strong” U.S. Catholics had increased to 62%, while the
share of “not very strong” Protestants had dropped to 36%.
Comparing Protestant Traditions and Catholics
Within the overall Protestant category,
respondents can be separated into three major religious traditions:
black Protestants, mainline Protestants and evangelical Protestants. For
example, members of the Southern Baptist Church and the Assemblies of
God belong to the evangelical Protestant tradition, while members of the
United Methodist Church and the Presbyterian Church (USA) are part of
the mainline Protestant tradition, and members of the National Baptist
Convention and the Church of God in Christ are in the black Protestant
tradition.
Of these major religious traditions, black Protestants
and evangelical Protestants were most likely to report having a strong
religious identity in 2012. Mainline Protestants are the least likely of
the three Protestant traditions to report a strong identity with their
faith. In 2012, 69% of black Protestants affirmed a strong religious
identity, as did 57% of evangelical Protestants, 35% of mainline
Protestants and 27% of Catholics.
‘Strong’ Protestants Stable As A Share Of The General Public, ‘Strong’ Catholics Declining
Viewed as a share of all
U.S. adults, “strong” Protestants have remained remarkably stable over
time. In the 2012 GSS, 27% of American adults identified as Protestants
with a strong religious identity – exactly the same percentage as in
1974.
3
Over
the same period, however, the share of the population that identifies
as Protestant but not “strong” Protestant declined substantially, from
36% in 1974 to 23% in 2012.
4
In other words, the increasing concentration of “strong” Protestants
seems to be due, in part, to attrition in the ranks of Protestants who
do not claim a strong religious identity.
“Strong”
Catholics, by contrast, have been declining both as a share of all
Catholics and as a share of the U.S. public. The proportion of all
American adults who identify as “strong” Catholics has fallen in the GSS
from 12% in 1974 to about 7% today. The share of the public that
identifies as Catholic but not “strong” Catholic, on the other hand, has
risen slightly, from 14% in 1974 to nearly 18% in 2012.
5
Methodology
All results are produced using a composite weight that is the product of three weight variables included in the 1972 to 2012
GSS cumulative dataset:
WTSSALL (which adjusts for the number of adults in the household),
OVERSAMP (which adjusts for oversamples of African Americans in 1982 and
1987), and FORMWT (which adjusts for problems with the randomization of
various questionnaire forms in the 1978-1985 waves of the GSS).
Respondents
with a religious affiliation who did not answer the religious strength
measure are excluded from the analysis of religious strength. This
amounted to less than 1% of the people who took the survey in 2012, but
it was higher in some other years. See Smith,
Tom W. July 1993. "Little Things Matter: A Sampler of How Differences in Questionnaire Format Can Affect Survey Responses." National Opinion Research Center, University of Chicago, GSS Methodological Report No. 78 (PDF).
The coding of denominational affiliations into Protestant religious traditions uses
RELTRAD syntax for Stata (PDF).
See Steensland, Brian, Jerry Z. Park, Mark D. Regnerus, Lynn D.
Robinson, W. Bradford Wilcox, and Robert D. Woodberry. 2000. “The
Measure of American Religion: Toward Improving the State of the Art.”
Social Forces, volume 79, issue 1, pages 291-318. This approach to
classifying Protestants into mainline Protestant, evangelical Protestant
and black Protestant traditions has been widely used by social
scientists in the analysis of GSS religion data. Among respondents who
identify as some type of Protestant or only as Christian in the GSS
RELIG variable, 94% are classified into a religious tradition by this
syntax.
Footnotes:
1 The question
about strength of religious identity has been a core GSS question since
1974. It was not included in the 1972 and 1973 waves of the GSS.
(return to text)
2
In recent years, increasing shares of GSS respondents identify
themselves only as “Christian” (6% in 2012) and do not provide a more
specific religious identity. Since Roman Catholic and Eastern Orthodox
Christians usually identify themselves as Catholic and Orthodox,
respectively, respondents who identify only as “Christian” are
classified in this analysis as Protestant. If respondents who identified
only as “Christian” are excluded from the analysis, the share of
Protestants reporting strong identity follows the same general pattern,
peaking at 52% in 2012.
(return to text)
3
Respondents with a religious affiliation who did not answer the strength
of religious identity measure are excluded from these calculations.
(return to text)
4
Protestants who did not identify as strong include those who said they
were “not very strong” Protestants and those who volunteered they were
“somewhat strong” Protestants.
(return to text)
5
Catholics who did not identify as strong include those who said they
were “not very strong” Catholics and those who volunteered they were
“somewhat strong” Catholics.
(return to text)
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