Saint Francis de Sales Oratory
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Years built
Demolished
Administration
Diocese
What is the oldest church in St. Louis Missouri?
Basilica of Saint Louis, King of France
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Style
Groundbreaking
Completed
Specifications
What is the most common religion in St. Louis?
Religion and places of worship According to the Association of Religion Data Archives (2000), the largest religious group in the metropolitan area was Catholic with 650,000 members, followed by evangelical Protestant churches with 390,000 members and mainline Protestant churches with 210,000 members.