Religious Group Congregations Members Adherents Attendees
Albanian Orthodox Diocese of America 2 350 395
Allegheny Wesleyan Methodist Connection 115 1,734 1,864 5,721
American Baptist Association, The 1,867 225,479 280,973
American Baptist Churches in the USA 5,555 1,417,543 1,767,462 661,225
American Carpatho-Russian Orthodox Greek Catholic Church 75 11,753 20,000
Amish; Other Groups 90 5,263 6,671
Antiochian Orthodox Christian Archdiocese of North America, The 210 41,187 82,374
Apostolic Catholic Assyrian Church of the East, North American Dioceses 18 35,118
Apostolic Christian Church of America, Inc. 84 12,720 23,980 23,980
Apostolic Christian Churches (Nazarean) 50 2,756 4,393 4,367
Armenian Apostolic Church / Catholicossate of Cilicia 38 9,871 46,354
Armenian Apostolic Church / Catholicossate of Etchmiadzin 89 8,529 91,513
Assemblies of God 11,880 1,489,281 2,561,998 1,623,889
Associate Reformed Presbyterian Church 242 34,678 40,397
Association of Free Lutheran Congregations, The 234 24,350 32,098 16,066
Bahá'í 1,198 146,756 146,756
Baptist General Conference 866 140,925 238,920 200,651
Baptist Missionary Association of America 1,322 235,345 295,239 91,334
Beachy Amish Mennonite Churches 102 7,532 9,422
Brethren Church, The (Ashland, Ohio) 119 13,096 16,266 12,367
Brethren In Christ Church 216 20,587 25,512 23,961
Bruderhof Communities, Inc. 7 924 924
Buddhism 1,656
Bulgarian Orthodox Diocese of the USA 9 5,340
Calvary Chapel Fellowship Churches 728
Catholic Church 21,791 62,035,042
Christian and Missionary Alliance, The 1,878 163,875 331,106
Christian Church (Disciples of Christ) 3,339 817,902 1,017,784 265,282
Christian Churches and Churches of Christ 5,471 1,156,699 1,439,253
Christian Reformed Church in North America 740 196,555 248,938 149,378
Christian Union 114 5,634 7,319 5,381
Church of God (Anderson, Indiana) 2,286 238,609 238,609
Church of God (Cleveland, Tennessee) 5,612 767,188 974,198 473,753
Church of God General Conference 89 3,487 4,925 3,900
Church of God in Christ, Mennonite 100 12,103 15,337
Church of God of Prophecy 1,858 73,261 91,106
Church of Jesus Christ of Latter-day Saints, The 11,515 4,224,026
Church of the Brethren 1,074 137,959 171,281 71,518
Church of the Nazarene 5,209 633,231 907,331 502,094
Churches of Christ 13,027 1,264,808 1,645,584 1,256,845
Churches of God, General Conference 336 32,208 42,204 27,459
Community of Christ 892 98,874 98,874
Congregational Christian Churches, Additional (not part of any national CCC body) 104 14,416 17,821
Conservative Baptist Association of America 1,191 224,306 224,306
Conservative Congregational Christian Conference 250 40,783 50,940 30,210
Conservative Mennonite Conference 104 10,223 14,865 12,483
Coptic Orthodox Church 55
Cumberland Presbyterian Church 706 46,674 77,686
Duck River and Kindred Baptists Associations 99 10,188 12,542
Eastern Pennsylvania Mennonite Church 49 3,540 4,384
Enterprise Baptists Association 65 4,310 5,289
Episcopal Church 7,314 2,314,756 836,143
Evangelical Covenant Church, The 671 102,342 153,116 124,533
Evangelical Free Church of America, The 1,365 145,190 285,699 283,549
Evangelical Lutheran Church in America 10,739 3,798,370 5,113,418 1,560,712
Evangelical Mennonite Church 34 5,278 6,625 10,347
Evangelical Presbyterian Church 179 63,783 80,207
Fellowship of Evangelical Bible Churches 17 1,962 1,811 1,360
Free Methodist Church of North America 950 60,185 96,237 90,777
Friends (Quakers) 1,302 90,791 113,086
Fundamental Methodist Conference, Inc. 13 814 1,009
General Association of Regular Baptist Churches 1,422 188,274 245,636 205,631
General Six Principle Baptists 1 20 25
Greek Orthodox Archdiocese of America 518 427,659
Greek Orthodox Archdiocese of Vasiloupulis 38 14,926 30,148
Hindu 629
Holy Orthodox Church in North America 30 1,889
Hutterian Brethren 123 8,118 12,300
Independent Free Will Baptists Associations 264 19,946 24,107
Independent, Charismatic Churches 621 588,530 935,168 598,434
Independent, Non-Charismatic Churches 1,084 753,454 1,116,769 854,622
International Church of the Foursquare Gospel 1,844 218,981 347,367 325,456
International Churches of Christ 99 56,952 79,161 96,747
International Council of Community Churches 192 51,626 64,186
International Pentecostal Church of Christ 67 2,184 5,453 2,321
International Pentecostal Holiness Church 1,843 194,688 241,828 147,569
Interstate & Foreign Landmark Missionary Baptists Association 121 12,737 16,127
Jain 92
Jasper Baptist and Pleasant Valley Baptist Associations 31 5,659 7,078
Jewish Estimate 3,727 6,141,325
Landmark Missionary Baptists, Independent Associations and Unaffiliated Churches 59 4,556 5,682
Lutheran Church--Missouri Synod 6,077 1,922,763 2,521,062 968,073
Macedonian Orthodox Church: American Diocese 17 16,640
Malankara Archdiocese of the Syrian Orthodox Church in North America 24 878 4,336
Malankara Orthodox Syrian Church, American Diocese of the 59 13,225
Mennonite Brethren Churches, U.S. Conference of 171 22,092 28,142
Mennonite Church USA 1,066 121,050 156,345 106,386
Mennonite; Other Groups 412 27,789 34,617
Midwest Congregational Christian Fellowship 29 1,367 1,705 1,451
Missionary Church, The 284 29,101 49,528 48,475
Moravian Church in America--Alaska Province 24 1,765 2,562
Moravian Church in America--Northern Province 93 20,281 25,872
Moravian Church in America--Southern Province 59 15,893 19,764
Muslim Estimate 1,209 1,559,294 353,738
National Association of Congregational Christian Churches 426 67,709 84,380 37,724
National Association of Free Will Baptists 2,466 205,617 254,170
National Primitive Baptist Convention, USA 547 53,630 66,452
Netherlands Reformed Congregations 15 2,291 4,442
New Hope Baptist Association 20 2,131 2,772
New Testament Association of Independent Baptist Churches and other Fundamental Baptist Associations/Fellowships 649 106,130 132,684
North American Baptist Conference 290 47,112 59,545 49,762
"Old" Missionary Baptists Associations 302 40,200 49,870
Old Order Amish Church 1,290 76,649 96,986
Old Order Mennonite 132 16,906 21,116
Old Order River Brethren 5 331 540 485
Original Free Will Baptists 237 37,198 46,211
Orthodox Church in America: Albanian Orthodox Archdiocese 12 5,775
Orthodox Church in America: Bulgarian Diocese 18 2,198 8,791
Orthodox Church in America: Romanian Orthodox Episcopate of America 56 17,201
Orthodox Church in America: Territorial Dioceses 370 34,133 77,110
Orthodox Presbyterian Church, The 278 17,782 26,346 21,728
Patriarchal Parishes of the Russian Orthodox Church in the USA 32
Pentecostal Church of God 1,173 44,976 101,921
Presbyterian Church (U.S.A.) 11,106 2,516,816 3,141,566 1,303,216
Presbyterian Church in America 1,441 243,298 315,293 220,168
Primitive Baptist Churches--Old Line 1,381
Primitive Baptists, Eastern District Association of 67 6,468 7,840
Primitive Methodist Church in the USA 79 4,502 4,796
Progressive Primitive Baptists 121 7,739 9,615
Protestant Reformed Churches in America 26 3,366 5,875
Reformed Baptist Churches 197
Reformed Church in America 896 177,058 335,677 164,349
Reformed Church in the United States 38 3,206 4,236
Reformed Mennonite Church 9 278 347
Romanian Orthodox Archdiocese in America and Canada 14 7,543
Russian Orthodox Church Outside of Russia 129
Salvation Army, The 1,332 139,620 415,060 96,171
Separate Baptists in Christ 94 8,716 10,674
Serbian Orthodox Church in the USA 75 55,807
Serbian Orthodox Church in the USA (New Gracanica Metropolitanate) 38
Seventh-day Adventist Church 4,507 775,625 923,046
Sikh 211
Southern Baptist Convention 41,514 15,922,039 19,881,467 5,535,891
Southwide Baptist Fellowship 501
Strict Baptists 3 26 33
Syrian Orthodox Church of Antioch 23 13,845
Tao 38
Two-Seed-in-the-Spirit Predestinarian Baptists 4 53 65
Ukrainian Orthodox Church of the USA 104 35,586
Unitarian Universalist Association of Congregations 999 147,771 182,698
United Church of Christ 5,863 1,371,593 1,698,918 568,552
United Methodist Church, The 35,721 8,326,616 10,350,629 3,487,039
United Reformed Churches in North America 49 7,529 11,449
Universal Fellowship of Metropolitan Community Churches 206 19,413 23,440 18,317
Vineyard USA 529 122,081 155,170 99,954
Wayne Trail Missionary Baptist Association 13 2,192 2,756
Wesleyan Church, The 1,657 108,430 381,459 169,152
Wisconsin Evangelical Lutheran Synod 1,277 314,941 405,078 179,837
Zoroastrian 35