Mainline Protestant States (2010) [ 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 in Mainline Protestant denominations. 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
22 Alabama
388,252
8.12
40 Alaska
32,550
4.58
46 Arizona
171,792
2.69
29 Arkansas
205,332
7.04
47 California
880,981
2.36
37 Colorado
246,706
4.91
23 Connecticut
281,174
7.87
17 Delaware
86,858
9.67
8 District Of Columbia
82,388
13.69
39 Florida
870,959
4.63
18 Georgia
855,259
8.83
45 Hawaii
40,833
3
43 Idaho
57,056
3.64
27 Illinois
933,690
7.28
13 Indiana
689,902
10.64
3 Iowa
666,637
21.88
9 Kansas
386,980
13.56
28 Kentucky
305,955
7.05
41 Louisiana
202,751
4.47
29 Maine
93,580
7.04
19 Maryland
500,112
8.66
38 Massachusetts
308,286
4.71
30 Michigan
653,898
6.62
4 Minnesota
974,156
18.37
21 Mississippi
244,121
8.23
25 Missouri
462,246
7.72
24 Montana
76,869
7.77
5 Nebraska
297,522
16.29
48 Nevada
41,558
1.54
33 New Hampshire
81,111
6.16
34 New Jersey
502,797
5.72
44 New Mexico
71,118
3.45
36 New York
1,027,403
5.3
11 North Carolina
1,130,241
11.85
1 North Dakota
196,839
29.27
16 Ohio
1,154,461
10.01
15 Oklahoma
383,786
10.23
42 Oregon
140,248
3.66
7 Pennsylvania
1,773,491
13.96
35 Rhode Island
57,103
5.43
14 South Carolina
482,103
10.42
2 South Dakota
196,001
24.07
20 Tennessee
533,145
8.4
32 Texas
1,553,959
6.18
49 Utah
23,546
0.85
26 Vermont
48,029
7.68
12 Virginia
870,842
10.88
40 Washington
308,292
4.58
6 West Virginia
274,766
14.83
10 Wisconsin
684,035
12.03
31 Wyoming
36,539
6.48


* 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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