Trinity was founded in 1893 as a mission from Christ Church in a part of Houston then called the "Fairground Addition", now known as Midtown.

The church's Morrow Chapel was renovated in 2002 and features world-class stained glass, artwork, and liturgical furnishings by such artists as Kim Clark Renteria, Kermit Oliver, Troy Woods, Shazia Sikander, and Selven O’Keef Jarmon.

At Trinity, there are ministries for all ages, varied opportunities for spiritual growth, and many programs in which to reach out to others in the community.

In addition, special events often take place at Trinity, including the annual Animal Blessing, in the autumn, and Jazz Festival, in the winter.

There are also occasional Sunday-evening concerts and special services such as Choral Evensong and sung Compline presented by the Trinity Choir, as well as worship in the Taizé tradition.