St Mary's Chapel of Petaluma

Santa Rosa, California

Address

860 Western Ave

Denomination

Catholic

Last updated August 2026

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Map showing location of St Mary's Chapel of Petaluma

5,000-20,000

estimated members

This is likely one of 22 Catholic congregations in Sonoma County, CA. Catholic accounts for 64% of the county's 295 congregations.

This estimate comes from ARDA 2020 data for churches of this size and denomination in the county.

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