| Business | Phone |
| Abundant Life Church 1281 N Highway 47, Union 63084 | (636) 583-8868 |
| Believers Bible Chapel 2032 Highway 50 W, Union 63084 | (636) 583-6211 |
| Central Missionary Baptist Chr 730 S Highway 47, Union 63084 | (636) 583-2953 |
| Church Of The Nazarene 12 Hoffert St, Union 63084 | (636) 583-2128 |
| First Baptist Church Of Union 801 Us Highway 50 E, Union 63084 | (636) 583-2386 |
| First Christian Church-Union 150 Joel Ave, Union 63084 | (636) 583-5839 |
| First Presbyterian Church 105 E Main St, Union 63084 | (636) 583-3555 |
| First United Methodist Church 848 W Main St, Union 63084 | (636) 583-3175 |
| First Wesleyan Church-Franklin 7184 Highway 47, Union 63084 | (636) 583-8677 |
| Grace Baptist Church 7145 Highway 47, Union 63084 | (636) 583-1669 |
| Grace Family Church 517 Commercial Dr, Union 63084 | (636) 583-1144 |
| Immaculate Concept Catholic Ch 100 N Washington Ave, Union 63084 | (636) 583-5144 |
| Jehovah's Witnesses 882 S Highway 47, Union 63084 | (636) 583-6923 |
| Lighthouse Baptist Church 3060 Moselle Rd, Union 63084 | (636) 629-7050 |
| Washington Church Of Christ Highway 50, Union 63084 | (636) 239-1614 |
| Zion United Church Of Christ 115 S Washington Ave, Union 63084 | (636) 583-2814 |
| Union Assembly Of God 600 S Mckinley Ave, Union 63084 | (636) 583-2116 |
| Union Baptist Temple 1403 W Springfield Ave, Union 63084 | (636) 583-8228 |
| Union Church Of Christ 422 Koelling Ave, Union 63084 | (636) 583-3361 |
| Union Church Of God 408 W Main St, Union 63084 | (636) 583-1040 |
| Trinity Presbyterian Church 727 Melinda Dr, Union 63084 | (636) 583-8463 |
| St John United Church-Christ 6110 State Rd A, Union 63084 | (636) 583-8856 |
| St Paul Lutheran Church 208 W Springfield Ave, Union 63084 | (636) 583-2209 |
| Romania Pentacostal Church 956 Copperfield Dr, Union 63084 | (636) 584-7811 |
| Oak Hill Freewill Baptist Chr 7606 Highway 47, Union 63084 | (636) 583-5990 |
| Outreach Fellowship 1400 W Springfield Ave, Union 63084 | (636) 584-7297 |