Students are offered opportunities such as scheduled field trips, co-curricular, and extra-curricular activities that enhance the curriculum at St. Matthew. Students may participate in a full range of athletic programs available to both boys and girls. Exploratory and club programs are useful in helping to expose the students to a variety of topics and media. Other avenues available to encourage student participation include Youth Group, D.A.R.E., HALO, Helping Hands, Student Government, Altar Servers, Beta Club, and Chorus.

Organizations such as Boy Scouts, Girl Scouts, Home and School Association, Dad's Club, and the D.A.R.E. Program involve the students with members of the community. St. Matthew also benefits from a wide variety of community volunteers for the library, computer lab, and the cafeteria. Students in fifth through seventh grades are involved in many community service projects through the St. Matthew Youth Group, Student Government, HALO, and Helping Hands.

For the past ten years, the youth group has averaged 3,000 service hours per year and was the recipient of the Brown Foundation Award for top service provider in the Jefferson Parish middle schools. Local charities such as Jefferson Health Care, the South Kenner Food Bank, the St. Vincent de Paul Society, Catholic Charities, Head Start Program, and the Battered Women's Center of New Orleans are among the recipients of the students' contributions. The Youth Group also coordinates and participates in a Junior/Senior Olympics for the Living Centers of America and annually sponsors three campers at Camp Bon Coeur Cardiac Summer Camp for Children. Members also participate in an annual Service Learning Lock-In Retreat, plan a monthly Youth Group Mass, and enjoy numerous social activities.

The HALO club (Hearts & Hands Active for Our Lord and Others) annually provides over 1,500 service hours for school projects such as honoring veteran guests at the annual Veterans Day celebration, hall hanging decorations and contests, making crafts for the parish fair, helping teachers, and a weekly concessions of healthy snacks. Other projects include participation in an annual Easter picnic for the children of Angel's Place and the adopting of less fortunate children for Christmas.

The St. Matthew Beta club has raised over $10,000 in their “Walk for Diabetes” each year of the last 3 years and has been recognized as the top statewide school. They also participate in various other projects such as a Math-a-Thon to raise money for Multiple Sclerosis; Hugs for Charity; and service hours at Kiddie Land at the school fair.

The Student Council provides opportunities for students to serve their school and the community through activities such as “Paws for a Cause” (for the local SPCA) and supporting the Angels' Place annual spring picnic.

Looking at the figures for the Walk for Diabetes, Jump Rope for Heart, Paws for a Cause, and the Good News for Education program for peer schools of the Archdiocese, St. Matthew donates over $25,000 to charitable organizations annually.