Iowa has 5,166 church listings in the Churches List directory, spread across 841 cities and towns. 115 listings are verified, 5,044 include a phone number, and 1,564 publish a website. The 2020 US Religion Census counted 4,822 congregations of 152 religious bodies in Iowa, with 1,431,349 reported adherents across 99 counties. 53 Iowa church buildings hold National Register of Historic Places listings@if ($wayback > 0), and 1 of the state's church websites were already archived by the Internet Archive before 2001@endif.
| Religious body | Congregations | Adherents |
|---|---|---|
| Catholic Church | 416 | 470,487 |
| Evangelical Lutheran Church in America | 403 | 185,217 |
| United Methodist Church | 735 | 173,750 |
| Lutheran Church--Missouri Synod | 285 | 89,917 |
| Non-denominational Christian Churches | 289 | 85,426 |
| Reformed Church in America | 79 | 41,570 |
| Presbyterian Church (U.S.A.) | 242 | 32,550 |
| Assemblies of God | 132 | 31,965 |
| United Church of Christ | 162 | 29,595 |
| Church of Jesus Christ of Latter-day Saints | 69 | 28,402 |
| Muslim Estimate | 23 | 23,211 |
| Christian Churches and Churches of Christ | 106 | 22,066 |
| Lutheran Congregations in Mission for Christ | 66 | 17,440 |
| Southern Baptist Convention | 113 | 16,129 |
| Christian Church (Disciples of Christ) | 111 | 15,618 |
| Tradition | Listings |
|---|---|
| Lutheran | 758 |
| Catholic | 626 |
| Methodist | 581 |
| Baptist Churches | 466 |
| United Methodist | 438 |
| Presbyterian | 216 |
| Other Christian Services | 201 |
| Christian | 199 |
| Evangelical | 181 |
| Non-Denominational | 169 |
| Church of Christ | 164 |
| Brethren | 140 |
| Church of the Nazarene | 96 |
| Bible | 92 |
| Assemblies of God | 80 |
Directory figures are live counts from the Churches List database for Iowa (IA) as of June 2026. Congregations and adherents come from the 2020 US Religion Census, a county-level enumeration reported by religious bodies and aggregated here to the state; its methodology differs from a directory count and the two will not match. Historic-register counts join National Register of Historic Places listings to directory churches. Statistics for other states: Texas · California · Pennsylvania · North Carolina · Ohio · Florida · Illinois · Georgia · New York · Michigan. See also the national statistics page, the Iowa directory, and dataset licensing.