National Shrine of St. Maximilian Kolbe at Marytown
Chicago, Illinois
Last updated May 2026
~9,650
estimated members
Based on ARDA 2020 data, this is likely one of 23 Catholic congregations in Lake County, IL, with an average size of approximately 9,650 members. Catholic accounts for 61% of the county's 396 congregations.
Source: ARDA 2020 Religious Congregations & Membership Study
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