St. Catherine of Sienna Church, Catholic church in Riverside, Greenwich, Connecticut, United States.
St. Catherine of Sienna Church displays Colonial-style architecture designed by Gustave E. Steinback that reflects traditional New England church building methods. The structure combines these design elements with interior spaces for worship and community use.
The parish was founded on May 8, 1913 by Bishop John Joseph Nilan with the original building completed in 1914. This early establishment created a Catholic gathering place for the surrounding area.
The parish brings people together through yearly summer events and regular community gatherings that create a sense of belonging. These occasions give the congregation space to connect beyond Sunday services.
The church holds services on multiple days throughout the week, including weekday masses and additional services on weekends. Visitors should check ahead to find times that work for their schedule.
In 2019 the parish merged with St. Agnes through a ceremonial procession marking a significant transition. This union brought together two neighboring communities under one spiritual leadership.
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