Connecticut has 2,835 church listings in the Churches List directory, spread across 230 cities and towns. 123 listings are verified, 2,819 include a phone number, and 1,335 publish a website. The 2020 US Religion Census counted 2,887 congregations of 134 religious bodies in Connecticut, with 1,707,793 reported adherents across 8 counties. 29 Connecticut church buildings hold National Register of Historic Places listings@if ($wayback > 0), and 2 of the state's church websites were already archived by the Internet Archive before 2001@endif.
| Religious body | Congregations | Adherents |
|---|---|---|
| Catholic Church | 354 | 1,024,927 |
| Non-denominational Christian Churches | 487 | 171,418 |
| United Church of Christ | 230 | 63,868 |
| American Baptist Churches in the USA | 115 | 44,638 |
| Muslim Estimate | 49 | 43,905 |
| Episcopal Church | 156 | 43,373 |
| United Methodist Church | 114 | 34,848 |
| Jehovah's Witnesses | 133 | 32,126 |
| National Baptist Convention, USA, Inc. | 23 | 25,660 |
| Assemblies of God | 99 | 22,475 |
| Reform Judaism | 19 | 16,017 |
| Church of Jesus Christ of Latter-day Saints | 35 | 15,560 |
| Evangelical Lutheran Church in America | 66 | 14,812 |
| Conservative Judaism | 21 | 13,868 |
| Greek Orthodox Archdiocese of America | 15 | 11,740 |
| Tradition | Listings |
|---|---|
| Catholic | 449 |
| Non-Denominational | 403 |
| Baptist Churches | 291 |
| United Church of Christ | 231 |
| Episcopal | 219 |
| Congregational | 179 |
| Lutheran | 133 |
| United Methodist | 113 |
| Pentecostal | 79 |
| Church of God | 70 |
| Church of Christ | 62 |
| Orthodox | 55 |
| Assemblies of God | 55 |
| Community | 44 |
| Christian | 39 |
Directory figures are live counts from the Churches List database for Connecticut (CT) 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 Connecticut directory, and dataset licensing.