To honor the 175th anniversary of the Archdiocese of Seattle in 2025, we are celebrating by hosting several events and activities from January through May. This will include special Masses with the bishops held throughout the archdiocese, culminating in a Solemn Mass and celebration at St. James Cathedral on May 31. Join us!
175th anniversary Masses and Celebrations with the bishops
Season of Service
To honor our local history, while embracing our Catholic Social teachings, we will host a “Season of Service.” From March 1 - May 31, 2025, local Catholics, parishes, schools, ministries and families are invited to participate in service with the goal of reaching 175,000 collective hours of service across Western Washington. Check back in February to learn how you can participate.
History of the archdiocese
When missionary priests arrived in the 1830s, could they have envisioned today’s archdiocese? Learn more about our local church history, from 1838 to present.