Mater Dei Parish - Immaculate Conception Church
Sioux City, Iowa
Last updated September 2026
1,000-5,000
estimated members
This is likely one of 11 Catholic congregations in Woodbury County, IA. Catholic accounts for 8% of the county's 140 congregations.
This estimate comes from ARDA 2020 data for churches of this size and denomination in the county.
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