We are a Catholic and Apostolic Church, preserving the faith, worship, structure and practice of the undivided Church. 

We have a democratic process where clergy and church members meet together at local, diocesan and national synods to elect candidates for bishop and make decisions for the Church.  

Holy Trinity and St. Casimir's annually elects a parish committee that together with the pastor, oversees the management of the parish.​

Holy Trinity and St. Casimir's have been serving the Plantsville and Wallingford communities since 1914. 

Our doors are open to all, and you are welcome to join us for Holy Mass and experience the presence of our Lord and Savior Jesus Christ in your life.