McLean Presbyterian Church is a member of the Presbyterian Church in America (PCA).
McLean Presbyterian Church is a member of the Potomac Presbytery, whose membership consists in churches of the region along the Potomac River from West Virginia to the Chesapeake Bay just south of Washington, D.C.
The connections and relationships in the Body of Christ expand beyond the local church congregation and its leadership of Elders, to a larger group of leading Elders, called the Presbytery. Leaders, who are Elders of local church congregations in a designated region, gather periodically for the purpose of cooperatively extending the work and mission of member churches and to decide on matters of ministry and doctrine that affect member churches.