Catholicism States (2000) [ Counties | [ Metro Areas ]
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Western Liturgical family represents the Roman Catholic Church or churches that originate from it. Such offshoots include the Old Catholic Church and the Polish National Catholic Church, which differ from the Roman Catholic Church in their rejection of the authority of the pope.

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

RankingState   [Download CSV]AdherentsPercent
12 California
10,079,310
29.76
5 New York
7,550,491
39.79
20 Texas
4,368,969
20.95
9 Illinois
3,874,933
31.2
10 Pennsylvania
3,802,524
30.96
3 New Jersey
3,403,020
40.44
2 Massachusetts
3,092,296
48.7
32 Florida
2,596,148
16.24
23 Ohio
2,231,832
19.66
21 Michigan
2,019,926
20.32
8 Wisconsin
1,695,660
31.61
11 Louisiana
1,382,603
30.94
4 Connecticut
1,372,562
40.3
15 Minnesota
1,260,660
25.63
26 Arizona
974,883
19
28 Maryland
952,389
17.98
33 Missouri
856,964
15.32
35 Indiana
836,009
13.75
29 Colorado
752,505
17.49
36 Washington
716,133
12.15
6 New Mexico
670,511
36.86
41 Virginia
606,059
8.56
25 Iowa
558,092
19.07
1 Rhode Island
542,244
51.73
7 New Hampshire
431,259
34.9
39 Kentucky
406,021
10.05
34 Kansas
405,844
15.1
44 Georgia
374,185
4.57
19 Nebraska
372,791
21.78
37 Oregon
348,239
10.18
30 Nevada
331,844
16.61
48 North Carolina
315,606
3.92
18 Maine
283,024
22.2
22 Hawaii
240,813
19.88
51 Tennessee
183,161
3.22
17 South Dakota
181,434
24.04
14 North Dakota
179,349
27.93
27 Montana
169,250
18.76
43 Oklahoma
168,625
4.89
13 District Of Columbia
160,048
27.98
24 Delaware
151,740
19.36
50 Alabama
150,647
3.39
16 Vermont
147,918
24.3
49 South Carolina
136,719
3.41
38 Idaho
130,847
10.11
46 Arkansas
115,967
4.34
47 Mississippi
115,760
4.07
42 West Virginia
105,363
5.83
45 Utah
97,085
4.35
31 Wyoming
80,421
16.29
40 Alaska
54,359
8.67


* 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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