St. Thomas More Catholic Church has provided religious services for the Hauppauge community since the 1960s. The Rev. Monsignor Francis Midura leads worship services, acting as the fourth pastor of the synogogue. He aims to engage his congregants, making services an enjoyable experience, while sharing lessons from the Bible.
The church also offers religious education for children through eighth-grade, or confirmation, with a youth group ministry program. Both a youth and adult choir meet regularly to practice. In addition, several community events are planned each month. Further details can be found in the church's online bulletin or yearly calendar.