| Business | Phone |
| Anchor Church 8475 Veterans Memorial Pkwy, O Fallon 63366 | (636) 980-9988 |
| Assumption Catholic Church 403 N Main St, O Fallon 63366 | (636) 240-3721 |
| Calvary Chapel 84 Hubble Dr # 400, O Fallon 63368 | (636) 527-8070 |
| Wentzville Church Of God 9970 Highway N, O Fallon 63367 | (636) 639-5569 |
| Vineyard Christian Fellowship 1727 Belleau Creek Rd, O Fallon 63366 | (636) 978-8463 |
| Town & Country Church O Fallon 63366 | (636) 294-0893 |
| Summit Community Church 1156 Hampton Meadows Dr, O Fallon 63368 | (636) 978-4545 |
| Sunrise United Methodist Chr 7116 Twin Chimneys Blvd, O Fallon 63366 | (636) 978-2727 |
| St Pauls Catholic Church 1223 Church Rd, O Fallon 63366 | (636) 978-1900 |
| Rlds Church-Twin Rivers 2790 Highway K, O Fallon 63368 | (636) 980-2396 |
| Pheasant Point Baptist Church 3400 Highway K, O Fallon 63368 | (636) 240-9563 |
| O'Fallon Christian Church 9380 Veterans Memorial Pkwy, O Fallon 63366 | (636) 240-3792 |
| New Covenant Church O'Fallon 1001 Highway K, O Fallon 63366 | (636) 272-1888 |
| New Horizon's Christian Church 8763 Veterans Memorial Pkwy, O Fallon 63366 | (636) 379-2813 |
| New Life Church 120 Fallon Pkwy # O, O Fallon 63368 | (636) 240-3567 |
| New Life Free Will Baptist Chr Belleau Crk & Mexico Rdamp;, O Fallon 63366 | (636) 281-2515 |
| Missionary Residence 1132 N Main St, O Fallon 63366 | (636) 240-4063 |
| Morning Star Church 9000 Veterans Memorial Pkwy, O Fallon 63366 | (636) 379-9667 |
| Liberty Christian Church 709 Crestview Dr, O Fallon 63366 | (636) 240-4412 |
| Lighthouse United Pentecostal 835 W Terra Ln, O Fallon 63366 | (636) 272-2946 |
| Lake Charles Bible Chapel Lorene Dr, O Fallon 63366 | (636) 272-6868 |
| Jehovah's Witnesses O'Fallon 1229 Bryan Rd, O Fallon 63366 | (636) 281-4987 |
| Jevovah's Witness-O Fallon 1229 Bryan Rd, O Fallon 63366 | (636) 240-3524 |
| Holy Cross Lutheran Church 8945 Veterans Memorial Pkwy, O Fallon 63366 | (636) 272-4505 |
| Hope Bible Church 173 Pieper Rd, O Fallon 63366 | (636) 240-4460 |
| Immaculate Conception Church 7701 Highway N, O Fallon 63368 | (636) 561-4459 |
| Gospel Light Baptist Church 415 Mill Pond Dr, O Fallon 63366 | (636) 980-3222 |
| Fellowship Church 7231 Highway N, O Fallon 63368 | (636) 980-2298 |
| First Assembly Of God 301 S Service Rd W, O Fallon 63366 | (636) 272-5050 |
| First Baptist Church-O'Fallon 8750 Veterans Memorial Pkwy, O Fallon 63366 | (636) 272-4838 |
| First Church O Fallon 3801 Lloyd King Dr, O Fallon 63368 | (636) 519-5441 |
| First Freewill Baptist Church 814 S Woodlawn, O Fallon 63366 | (636) 272-5927 |
| Faith Chapel Assembly Of God 6747 Keats Rd, O Fallon 63368 | (636) 300-0700 |
| Faith Community Church 202 S Main St, O Fallon 63366 | (636) 272-7377 |
| Dardenne Baptist Church 2345 Oak Dr, O Fallon 63368 | (636) 625-2015 |
| Dardenne Prairie Bible Church 2300 Bates Rd, O Fallon 63368 | (636) 978-6493 |
| Dardenne Prairie Church-Christ 1332 Feise Rd, O Fallon 63368 | (636) 281-1401 |
| Dardenne Presbyterian Church 7400 Highway N, O Fallon 63368 | (636) 561-4347 |
| Centerpointe Community Church Po Box 1759, O Fallon 63366 | (636) 272-2775 |
| Church Of Christ 8576 Veterans Memorial Pkwy, O Fallon 63366 | (636) 272-3080 |
| Church Of The Crossroads 141 Weiss Rd, O Fallon 63366 | (636) 978-3285 |