Largest Organized Church Denominations in the United States

As ranked by membership... The Roman Catholic Church 65,270,000 members; Southern Baptist Convention 16,053,000; The United Methodist Church 8,298,000; The Church of God in Christ 5,500,000; Evangelical Lutheran Church in America; 5,100,000; National Baptist Convention, U.S.A., Inc. 5,000,000; National Baptist Convention of America, Inc. 3,500,000; Presbyterian Church 3,456,000; The Lutheran Church Missouri Synod 2,540,000, African Methodist Episcopal Church 2,500,000; National Missionary Baptist Convention of America 2,500,000; Progressive National Baptist Convention, Inc. 2,500,000; The Episcopal Church 2,333,000; Churches of Christ 1,500,000; Greek Orthodox Archdiocese of America 1,500,000; Pentecostal Assemblies of the World, Inc. 1,500,000; African Methodist Episcopal Zion Church 1,448,000; American Baptist Churches in the U.S.A 1,443,000; United Church of Christ 1,359,000; Baptist Bible Fellowship International 1,200,000; Christian Churches and Churches of Christ 1,072,000; The Orthodox Church in America 1,000,000. -- Source: Yearbook of American & Canadian Churches, 2003.