Holy Assumption Monastery
Napa, California
Holy Assumption Monastery is an Orthodox Christian monastery for women located in Calistoga, California, on the banks of the Napa River. The monastery is part of the Orthodox Church in America's Diocese of San Francisco and the West, under Bishop Vasily. Prayer services are open to the public. The monastery grounds are open dawn to dusk Tuesday through Sunday, and closed on Mondays and Great Feast Days. Church tours are available by appointment and walk-ins are welcome. The monastery operates a Books and Gifts Store and hosts pilgrim guests, retreat groups, workshops, and visiting clergy in St. Barbara House. The sisterhood celebrates their 16th year in Calistoga and offers hospitality while maintaining daily prayer services.
Denomination
CatholicPhone
707-942-6244Services
Ministries
Morning Prayer
Languages
English, SpanishLast updated May 2026
5,000-20,000
estimated members
This is likely one of 8 Catholic congregations in Napa County, CA. Catholic accounts for 63% of the county's 95 congregations.
This estimate comes from ARDA 2020 data for churches of this size and denomination in the county.
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