St. Ambrose Catholic Church
Saint Louis, Missouri
Services
Worship
Eucharist
Confession
Latin Mass
Adoration
Prayer Group
Last updated May 2026

~1,185
estimated members
Based on ARDA 2020 data, this is likely one of 42 Catholic congregations in St. Louis city, MO, with an average size of approximately 1,185 members. Catholic accounts for 21% of the county's 511 congregations.
Source: ARDA 2020 Religious Congregations & Membership Study
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