Trinity Church welcomes into its fellowship any person who accepts Jesus, strives to follow Him, and partners with the congregation in mutual spiritual growth and nurturing. Members are received into the church based on:
- Confession of faith and baptism
- Reaffirmation of faith
- Letter of transfer from another church
On alternate years, Confirmation/Baptism class is offered to 7th and 8th graders. At the conclusion of the class, participants may choose to be confirmed in the United Church of Christ tradition or baptized in the American Baptist tradition.
Active members support Trinity Church by their presence, their time, and their financial contributions.