St Pius V Traditional Catholic Church - Latin Mass SSPX- Serving Waukesha & Milwaukee Counties
Milwaukee, Wisconsin
Last updated May 2026

~4,409
estimated members
Based on ARDA 2020 data, this is likely one of 29 Catholic congregations in Waukesha County, WI, with an average size of approximately 4,409 members. Catholic accounts for 52% of the county's 280 congregations.
Source: ARDA 2020 Religious Congregations & Membership Study
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