Concordia is a member of the NSAA (Nebraska School Activities Association) and the Centennial Conference.  Other members of the Centennial Conference include:  Archbishop Bergan Catholic, Boys Town, David City Aquinas, Grand Island Central Catholic, Hastings St. Cecilia, Kearney Catholic, Lincoln Christian, Lincoln Lutheran, Scotus Central Catholic, Wahoo Bishop Neumann.  Athletic competition is at the Class C-1 or B level depending on the sport.  There are many student opportunities for athletics including a few sports that are offered through cooperatives with other schools such as Douglas County West (softball) and Brownell Talbot (swimming and tennis).

Fine Arts are integrated into curriculum opportunities such as band and choir as well as student extracurricular activities.  Whether the activity is music drama or student leadership, Concordia is committed to excellence.  As Paul says in Colossians 3:23, "Whatever you do, do your work heartily, as for the Lord rather than for men."