St. Monica Catholic Church
Seattle, Washington
St. Monica Catholic Church is a parish of the Archdiocese of Seattle located in Mercer Island, Washington. The church offers weekday Masses Monday through Saturday, with Sunday Masses in English and Chinese. Confession times are available throughout the week. The parish features a Perpetual Eucharistic Adoration Chapel open 24 hours daily except during Mass celebrations. St. Monica provides Mass livestreams for those unable to attend in person, homily recordings, and online giving through Pushpay. The parish is merging with Sacred Heart Parish to form one new canonical parish, uniting as partners in the Gospel.
Denomination
CatholicPhone
206-232-2900Services
Languages
English, ChineseLast updated August 2026
1,000-5,000
estimated members
This is likely one of 68 Catholic congregations in King County, WA. Catholic accounts for 32% of the county's 1,467 congregations.
This estimate comes from ARDA 2020 data for churches of this size and denomination in the county.
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