| Business | Phone |
| Wesleyan Church 1616 3rd Ave Ne, Watertown 57201 | (605) 886-3779 |
| Baptist Fellowship Church Po Box 831, Watertown 57201 | (605) 882-3675 |
| Bethlehem Lutheran Church 1144 N Maple, Watertown 57201 | (605) 886-3582 |
| Trinity Episcopal Church 500 14th Ave Nw, Watertown 57201 | (605) 886-4167 |
| Trinity Lutheran Church 1800 E Kemp, Watertown 57201 | (605) 886-2976 |
| United Pentecostal Church 509 11th St Nw, Watertown 57201 | (605) 882-3814 |
| Christian Life Assembly Of God 201 S Broadway, Watertown 57201 | (605) 886-3392 |
| Church Of Christ 1103 4th St Ne, Watertown 57201 | (605) 886-4559 |
| Church Of Jesus Christ Of Lds 1200 19th St Ne, Watertown 57201 | (605) 882-2299 |
| South Lake Church Of Christ 201 Golf Course Rd, Watertown 57201 | (605) 886-2418 |
| St Martins Lutheran Church 1200 2nd St Ne, Watertown 57201 | (605) 886-2928 |
| Community Baptist Church 7 W Kemp, Watertown 57201 | (605) 520-2328 |
| Cornerstone Church 1350 11th St Ne, Watertown 57201 | (605) 886-2242 |
| Seventh Day Adventist Church 409 N Maple, Watertown 57201 | (605) 882-0544 |
| Covenant Reform Church 434 30th St Nw, Watertown 57201 | (605) 882-9704 |
| Evangelical Wesleyan Church 45557 176th St, Watertown 57201 | (605) 886-3803 |
| Presbyterian Church 905 7th Ave Ne, Watertown 57201 | (605) 886-8990 |
| First Baptist Church 111 14th Ave Ne, Watertown 57201 | (605) 886-4863 |
| First Congregational Church 121 1st Ave Se, Watertown 57201 | (605) 886-6994 |
| First United Methodist Church 4 2nd Ave Se, Watertown 57201 | (605) 886-4427 |
| Prairie Lakes Baptist Church 106 19th St Ne, Watertown 57201 | (605) 882-0946 |
| Florence United Methodist Chr 2423 Stadheim Dr, Watertown 57201 | (605) 882-2824 |
| Foursquare Church 1120 4th St Ne, Watertown 57201 | (605) 886-2510 |
| Grace Lutheran Church 202 2nd St Se, Watertown 57201 | (605) 886-5737 |
| Neighborhood Church 10 2nd St Se, Watertown 57201 | (605) 886-5606 |
| New Life Evangelical Free Chr 1530 N Highway 20, Watertown 57201 | (605) 886-1977 |
| Holy Name Catholic Church 1009 Skyline Dr, Watertown 57201 | (605) 886-2628 |
| Mount Olive Lutheran Church 715 2nd St Ne, Watertown 57201 | (605) 886-5671 |
| Immaculate Conception Church 110 3rd St Se, Watertown 57201 | (605) 886-9607 |
| Immaculate Conception Church 309 2nd Ave Se, Watertown 57201 | (605) 886-4049 |
| Jehovah's Witnesses 3000 9th Ave Se, Watertown 57201 | (605) 886-6216 |
| Living Faith Christian Ctr 13 17th St Sw, Watertown 57201 | (605) 886-3625 |
| Lutheran Brethren Chrstn 520 9th St Se, Watertown 57201 | (605) 882-1585 |
| Lutheran Church-Our Redeemer 15 12th Ave Ne, Watertown 57201 | (605) 882-3768 |
| Lutheran Church-Our Redeemer 2001 2nd St Nw, Watertown 57201 | (605) 886-2696 |