About St. Thomas · Brownsville, Texas
St. Thomas Mission is a Spanish-language Catholic mission church located at 155 East Jefferson Street in Brownsville, Texas, within the Diocese of Brownsville. It operates as a dependent mission of the mother parish, Immaculate Conception Cathedral, sharing the Cathedral's phone line and serving the faithful of the Rio Grande Valley alongside the Cathedral and its other mission, Sacred Heart. The mission is currently served by Father Joel Flores and offers Mass on Sundays and Wednesdays (and the First Friday of each month) in Spanish, providing a small, welcoming worship community in downtown Brownsville.
- Patron
- St. Thomas the Apostle (by church name)
- Rector
- Father Joel Flores
- Diocese
- Diocese of Brownsville
Why belong here
St. Thomas Mission offers an intimate, Spanish-language Catholic worship community in the heart of Brownsville, with Sunday and weekday Mass celebrated in Spanish. Under Father Joel Flores, the congregation is renewing cherished traditions while creating new opportunities for faith formation — particularly for bringing children and families together. As a mission of the historic Immaculate Conception Cathedral (the oldest church in the Diocese of Brownsville, founded by the Oblate Fathers in 1859), it carries the heritage and pastoral care of the Cathedral parish while maintaining a close-knit, neighborhood feel on East Jefferson Street.
Mass times at St. Thomas
Weekly Mass schedule
About St. Thomas Mission
St. Thomas Mission is a Spanish-language Catholic mission church in downtown Brownsville, Texas, serving as a dependent mission of Immaculate Conception Cathedral, the Cathedral church of the Diocese of Brownsville. Located at 155 East Jefferson Street, the mission offers Mass in Spanish on Sundays and select weekdays, giving parishioners a smaller, neighborhood-style worship community rooted in the historic spiritual tradition of the Rio Grande Valley.
History & Heritage
While the mission does not publish its own detailed historical timeline, it is part of the Immaculate Conception Cathedral parish family — founded in 1859 by the French Oblate missionary Fathers of Mary Immaculate and dedicated that same year, making it the oldest church in the Diocese of Brownsville. The Cathedral parish also operates Sacred Heart Mission, and together the three worshiping communities (Cathedral, Sacred Heart, and St. Thomas) carry forward the founder's 'Christ-given mission of making disciples' that has been passed down through the generations in Brownsville.
- Immaculate Conception Cathedral dedicated in 1859 by the Oblate Fathers of Mary Immaculate
- St. Thomas operates as a mission of the Cathedral parish
- Sister mission: Sacred Heart Mission, Brownsville
Clergy & Leadership
St. Thomas Mission is currently served by Father Joel Flores. As a mission of the Cathedral parish, it falls under the broader pastoral oversight of the Cathedral rector and the Bishop of Brownsville, the Most Reverend Daniel E. Flores. Parishioners speak warmly of Father Joel's work to renew longstanding traditions while developing new experiences that bring children and families together in faith.
- Father Joel Flores — current mission priest
- Diocesan bishop: Most Reverend Daniel E. Flores, Bishop of Brownsville
Mass & Worship Schedule
All listed Masses at St. Thomas Mission are celebrated in Spanish. The mission follows a simple weekly schedule centered on Sunday worship, with one midweek Spanish Mass and an additional First Friday Mass. Parishioners and visitors are encouraged to confirm current times with the Cathedral parish office, as mission schedules can change seasonally.
- Sunday Mass — 9:00 AM (Spanish)
- Wednesday Mass — 6:30 PM (Spanish)
- First Friday Mass — 7:00 PM
Languages & Liturgy
The mission celebrates the Sacred Liturgy in Spanish, the language of the predominantly Hispanic Catholic community of Brownsville and the Lower Rio Grande Valley. The Latin Rite (Roman Rite) is observed, consistent with the rest of the Diocese of Brownsville.
- Primary liturgical language: Spanish
- Rite: Roman (Latin) Rite
Parish Ministries & Community Life
Public descriptions of St. Thomas Mission emphasize a close-knit community where friendships are formed and children are welcomed into the life of faith. Under Father Joel Flores, the congregation is described as developing new experiences alongside renewed older traditions, with a special focus on bringing children together and promoting friendship and community among parishioners.
- Faith formation for children
- Community fellowship and parish friendship-building
- Renewal of longstanding parish traditions alongside new initiatives
Connection to Immaculate Conception Cathedral
St. Thomas Mission is one of two missions maintained by Immaculate Conception Cathedral parish (the other being Sacred Heart Mission). The Cathedral — a Gothic Revival brick church built in 1859 by the French Oblates — draws over 100,000 visitors per year and serves as the Cathedral church of the Diocese of Brownsville. St. Thomas Mission shares the Cathedral's pastoral resources, including the same parish phone line, and benefits from its historic legacy in the Valley.
- Mother parish: Immaculate Conception Cathedral, 1218 E. Jefferson St., Brownsville
- Diocese of Brownsville Cathedral since 1874 (re-erected 1965)
- Shared parish phone: (956) 546-3178
Diocese of Brownsville
St. Thomas Mission belongs to the Roman Catholic Diocese of Brownsville, a Latin-Rite suffragan diocese in the ecclesiastical province of the Archdiocese of Galveston-Houston. The diocese was originally erected as the Vicariate Apostolic of Brownsville in 1874 by Pope Pius IX and was re-established as the Diocese of Brownsville on July 10, 1965. The current bishop is the Most Reverend Daniel E. Flores. The diocese covers the counties of Starr, Willacy, Hidalgo, and Cameron in South Texas and serves a heavily Hispanic Catholic population in the Rio Grande Valley.
- Diocese established as a vicariate apostolic in 1874
- Re-erected as a diocese on July 10, 1965
- Bishop: Most Reverend Daniel E. Flores
- Ecclesiastical province: Archdiocese of Galveston-Houston
Visit, Location & Contact
St. Thomas Mission is located at 155 East Jefferson Street, Brownsville, Texas 78520 — a short distance from the mother Cathedral at 1218 E. Jefferson Street in the historic downtown area. The mission shares the Cathedral's telephone line, so visitors and parishioners may call (956) 546-3178 for schedule information, sacramental needs, or to inquire about parish life.
- Address: 155 East Jefferson Street, Brownsville, TX 78520
- Phone: (956) 546-3178 (Cathedral parish line)
- Website: immaculateconceptioncathedral.org/saint-thomas-mission