Trinity Presbyterian Church is a welcoming Christian congregation of about 750 members. The church encourages people of all backgrounds and Christian denominations to join and worship, study and share together. Sunday services are held at 8:30am and 11am (10am in summer months). The church has its own preschool for children ages 3 - 5. Trinity Presbyterian supports many fellowships, support groups and ministries, with opportunities for children, teens, adults and seniors. It was established in Herndon in 1959.