Mater Dolorosa
Sierra Madre, California
Last updated May 2026
~713
estimated members
Based on ARDA 2020 data, this is likely one of 531 Non-Denominational congregations in Los Angeles County, CA, with an average size of approximately 713 members. Non-Denominational accounts for 7% of the county's 5,645 congregations.
Source: ARDA 2020 Religious Congregations & Membership Study
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