The development of religion in Ohio reflects the state's historic role as the meeting point between New England Puritan traditions, Appalachian revivals, and European Catholic immigration. Today, Roman Catholic parishes and mainline Protestant denominations anchor the state's civic life, complemented by expanding evangelical congregations and distinct heritage communities across rural counties.
Overview of Religion in Ohio
According to findings from the 2014 Pew Research Center Religious Landscape Study, approximately 73 percent of adult residents in Ohio identify as Christian. Evangelical Protestants represent the largest overall group at 29 percent of the population, while Roman Catholics account for 18 percent, and Mainline Protestants comprise 17 percent. Historically Black Protestant denominations represent 7 percent, reflecting significant Great Migration settlement across industrial manufacturing centers. Eastern Orthodox Christians make up 1 percent, and other Christian traditions represent 1 percent. Non-Christian faiths, including Judaism, Islam, and Hinduism, collectively encompass 4 percent of adult Ohioans, while roughly 22 percent identify as religiously unaffiliated, claiming no formal church ties.
When evaluated through institutional affiliation, the 2020 US Religion Census identifies the Catholic Church as the largest denomination in Ohio by total adherents, counting over 1.8 million members organized across the Archdiocese of Cincinnati and five regional dioceses based in Cleveland, Columbus, Toledo, Youngstown, and Steubenville. Among Protestant bodies, the United Methodist Church ranks as the largest individual denomination, followed by the Evangelical Lutheran Church in America, the Southern Baptist Convention, and independent non-denominational congregations. Additionally, Ohio is home to the largest Amish population in the world, with more than 80,000 members residing primarily in Holmes, Wayne, and Geauga counties.
Directory Distribution: Denominations in Ohio
Our statewide church directory catalogs 3,673 congregations across Ohio, demonstrating the remarkable diversity of theological traditions that established roots within the Buckeye State. Congregations affiliated with Baptist churches in Ohio represent the single largest category in the directory, totaling 634 congregations, or 17.3 percent of all listings. This total includes Southern Baptist Convention churches, National Baptist conventions in metropolitan neighborhoods, American Baptist assemblies, and independent Baptist congregations. In national comparisons detailed in our guide to Baptist churches by state, Ohio occupies an influential position connecting northern urban missionary Baptist networks with southern evangelical traditions.
Parishes representing Catholic churches in Ohio constitute the second-largest directory category with 576 listings, or 15.7 percent of the total. Catholic parishes anchor civic and social institutions across historic industrial cities, lake ports, and rural farming counties. Congregations associated with Methodist churches in Ohio rank third with 568 listings (15.5 percent), preserving the heritage of frontier circuit riders who established a church in nearly every township.
Lutheran congregations represent the fourth major group with 439 listings (12.0 percent), divided between the Evangelical Lutheran Church in America and the Lutheran Church-Missouri Synod. Presbyterian and Reformed churches account for 375 listings (10.2 percent), tracing their heritage to early New England and Scots-Irish pioneer settlements. Non-denominational evangelical congregations number 241 listings (6.6 percent), while Pentecostal fellowships contribute 199 listings (5.4 percent). Historic Christian Churches (Disciples of Christ) and independent Christian Churches register 179 listings (4.9 percent), followed by Holiness and Church of the Nazarene congregations with 144 listings (3.9 percent). Episcopal and Anglican parishes record 74 listings (2.0 percent), Eastern Orthodox parishes account for 48 listings (1.3 percent), and Jewish synagogues tally 47 listings (1.3 percent). The directory also records Churches of Christ (44 listings), Brethren assemblies (34 listings), Independent Fundamentalist churches (19 listings), Latter-day Saint meetinghouses (19 listings), Seventh-day Adventists (15 listings), Mennonite assemblies (14 listings), and Metaphysical centers (4 listings).
Settlement History and Religious Roots
The religious topography of Ohio was shaped by competing migration streams during the late eighteenth and early nineteenth centuries. In northeastern Ohio, the Connecticut Western Reserve was settled by New England Congregationalists and Presbyterians who laid out towns with classic central greens, public squares, and white-steepled meetinghouses, establishing institutions such as Western Reserve College and Oberlin College, which became an early leader in abolitionism and interracial education.
Simultaneously, pioneers from Pennsylvania, Virginia, and Kentucky entered southern and central Ohio through the Ohio River Valley. They brought energetic camp-meeting revivalism that established Methodism as a dominant cultural force. In the Miami Valley and Cincinnati, frontier circuit riders organized societies that built the Methodist Church into a pillar of early civic life.
In 1808, Amish settlers from Somerset County, Pennsylvania, arrived in the rolling hills of Holmes and Tuscarawas counties. Cherishing simplicity, agricultural self-reliance, and German-dialect worship, they founded communities that grew into the largest Amish settlement on earth. The region remains famous for horse-drawn buggies, cooperative barn raisings, and distinct Old Order Amish church districts.
During the 1830s, northeastern Ohio became the headquarters of the nascent Latter-day Saint movement. In Kirtland, Ohio, church founder Joseph Smith and early converts gathered to build the Kirtland Temple between 1833 and 1836. Constructed of native sandstone covered in stucco, the three-story building served as the movement's first temple before members migrated westward.
In southwest Ohio, Cincinnati developed into the historic intellectual fountainhead of American Reform Judaism. In 1854, Rabbi Isaac Mayer Wise arrived in Cincinnati and organized the Union of American Hebrew Congregations. In 1875, Wise founded Hebrew Union College, the oldest surviving rabbinical seminary in the Americas. The congregation erected the Plum Street Temple in 1866, an architectural wonder blending Byzantine and Moorish elements.
Late nineteenth-century industrialization brought massive Catholic and Orthodox immigration from southern and eastern Europe to factory towns along Lake Erie and the Mahoning Valley. Polish, Hungarian, Slovak, Italian, and Irish workers built magnificent neighborhood parishes across Cleveland, Toledo, and Youngstown. In Cleveland's Tremont neighborhood, Russian and Slavic immigrants erected Saint Theodosius Cathedral in 1912, famous for its thirteen distinctive onion domes representing Christ and the Twelve Apostles.
Notable Historic Churches and Landmarks
Ohio contains architectural and religious monuments of national renown. The Kirtland Temple in Lake County stands as a landmark of American religious history, featuring detailed handcrafted woodwork, tiered pulpits for the Aaronic and Melchizedek priesthoods, and historic Gothic-revival windows.
In downtown Cincinnati, the Plum Street Temple, officially the Isaac M. Wise Temple, is recognized as a National Historic Landmark. Designed by architect James Keyes Wilson, the sanctuary features twin minarets rising 137 feet, elaborate rose-colored stenciling, and hand-carved walnut furnishings. In Cleveland's historic Slavic Village, the Shrine Church of Saint Stanislaus represents one of the grandest examples of Polish Cathedral Gothic architecture in North America, with twin spires rising 122 feet above the neighborhood.
In western Ohio's Mercer County, the historic Maria Stein Shrine of the Holy Relics preserves the second-largest collection of recognized Christian relics in the United States, housed in a tranquil convent complex that anchors the regional Catholic district known as the Land of the Cross-Tipped Churches.
Churches in Major Ohio Communities
Denominational life in Ohio is organized around major metropolitan areas and industrial centers. Searching our database for churches in Ohio reveals prominent congregational networks serving diverse communities.
Cleveland represents the largest municipal church market in the state, with 432 listings in our directory. Searching for churches in Cleveland highlights historic ethnic Catholic parishes, landmark African American Baptist congregations, and established Orthodox cathedrals in Cuyahoga County. In southwestern Ohio, churches in Cincinnati account for 316 listings, featuring German Catholic neighborhood parishes in Over-the-Rhine, historic Jewish synagogues, and prominent Presbyterian assemblies. In the state capital, churches in Columbus record 234 listings, serving university students, government leaders, and growing suburban evangelical ministries across Franklin County. In the Miami Valley, Dayton records 194 listings with strong United Brethren and Methodist roots, while Toledo tallies 150 listings serving the Lake Erie shoreline.
Regional Comparisons: Ohio and Its Neighbors
Positioned between the East Coast, the Midwest, and Appalachia, Ohio reflects complex regional transitions. As discussed in our survey of religion in the Midwest, Ohio combines urban manufacturing faith communities with extensive agricultural traditions.
To the east, religion in Pennsylvania shares Ohio's heavy German heritage, Presbyterian influence, and prominent Plain sect settlements, though Pennsylvania has older colonial roots and a larger Quaker legacy. To the southeast, religion in West Virginia exhibits a much more rural Appalachian church profile, characterized by smaller independent Baptist and Holiness fellowships and relatively small Catholic numbers. To the south across the Ohio River, religion in Kentucky transitions directly into the upper Bible Belt, featuring much stronger Southern Baptist dominance and fewer mainline Protestant institutions than Ohio.