Immaculate Conception Catholic School

Monmouth, Illinois

Address115 N B St
DenominationCatholic

Last updated June 2026

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~1,590

estimated members

Based on ARDA 2020 data, this is likely one of 1 Catholic congregations in Warren County, IL, with an average size of approximately 1,590 members. Catholic accounts for 28% of the county's 31 congregations.

Source: ARDA 2020 Religious Congregations & Membership Study

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