what is the largest credit union in the u.s.?
10 Largest Credit Unions in the USA by Membership. 1  Navy Federal Credit Union located in Merrifield, Virgina has 3,194,292 members. 2  State Employees Credit Union located in Raleigh, North Carolina has 1,498,062 members. 3  Pentagon Federal Credit Union located in Alexandria, Virgina has 864,803 members.