Catholicism States (1990) [ Counties | Metro Areas ]
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Using data from the 1980-2010 Religious Congregations and Membership Studies, this list ranks U.S. states on the highest total number of adherents and the highest percent of the population who are Catholic. You can sort the list by clicking on the column headings.

Congregational "Adherents" include all full members, their children, and others who regularly attend services. "Percent" is the percentage of the total population that belongs to that denomination. Note: Adherents are sometimes residents of a county different than the location of their congregation.

[ More information on the data source ]

Complete List

Ranking State   [Download CSV]AdherentsPercent
46 Alabama
137,834
3.41
39 Alaska
45,203
8.22
24 Arizona
655,664
17.89
48 Arkansas
72,952
3.1
16 California
7,142,067
24
30 Colorado
482,892
14.66
3 Connecticut
1,374,751
41.82
25 Delaware
116,341
17.46
33 District Of Columbia
77,532
12.78
35 Florida
1,598,457
12.35
47 Georgia
210,210
3.24
20 Hawaii
232,780
21
40 Idaho
73,897
7.34
8 Illinois
3,611,050
31.59
34 Indiana
699,195
12.61
23 Iowa
520,322
18.74
29 Kansas
369,241
14.9
37 Kentucky
365,270
9.91
6 Louisiana
1,369,154
32.44
17 Maine
264,478
21.54
26 Maryland
832,763
17.42
2 Massachusetts
2,961,365
49.22
15 Michigan
2,338,608
25.16
14 Minnesota
1,110,071
25.37
45 Mississippi
94,948
3.69
28 Missouri
802,145
15.68
27 Montana
125,799
15.74
18 Nebraska
335,372
21.25
32 Nevada
156,956
13.06
12 New Hampshire
297,062
26.78
4 New Jersey
3,189,315
41.26
10 New Mexico
467,382
30.85
5 New York
7,280,488
40.47
50 North Carolina
149,483
2.26
11 North Dakota
173,432
27.15
22 Ohio
2,141,777
19.75
43 Oklahoma
143,640
4.57
38 Oregon
279,650
9.84
9 Pennsylvania
3,675,250
30.93
1 Rhode Island
633,474
63.13
50 South Carolina
78,768
2.26
21 South Dakota
143,776
20.66
49 Tennessee
137,203
2.81
19 Texas
3,574,731
21.04
44 Utah
66,344
3.85
13 Vermont
143,938
25.58
41 Virginia
384,285
6.21
36 Washington
526,546
10.82
42 West Virginia
108,529
6.05
7 Wisconsin
1,554,278
31.77
31 Wyoming
59,565
13.13


* In an effort to better match the ASARB standards for adherents, a few religious bodies changed the way their adherents were reported in 2010, including Amish groups, Friends groups, Jewish groups, the Church of Jesus Christ of Latter-day Saints, Non-denominational Christian Churches, and the United Methodist Church. This change does not affect any of the data in the newly released 2010 U.S. Religion Census: Religious Congregations & Membership Study. In fact, the data for these groups are now more comparable to that of other bodies than it was in previous decadal reports.

However, the change in methodology can distort assessments on growth or decline between 2000 and 2010 for each of these groups. County-level 2000 data using the new methodology are not readily available. ASARB staff has adjusted some 2000 county-level adherent statistics to allow for a more accurate picture on growth or decline. The revised maps and charts are now available on-line at www.usreligioncensus.org for those who are interested in these trends.

Source

2010 data were collected by the Association of Statisticians of American Religious Bodies (ASARB) and include statistics for 236 religious groups, providing information on the number of their congregations and adherents within each state and county in the United States. Clifford Grammich, Kirk Hadaway, Richard Houseal, Dale E. Jones, Alexei Krindatch, Richie Stanley and Richard H. Taylor supervised the collection. These data originally appeared in 2010 U.S. Religion Census: Religious Congregations & Membership Study, published by the Association of Statisticians of American Religious Bodies (ASARB). [More information on the data collection]




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