St Mary Parish

Waltham, Massachusetts

Address

133 School St, Waltham, MA 02451

Denomination

Catholic

Phone

(781) 891-1730

Services

Languages

English, Spanish, Luganda

Last updated September 2026

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5,000-20,000

estimated members

This is likely one of 107 Catholic congregations in Middlesex County, MA. Catholic accounts for 73% of the county's 958 congregations.

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

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