The 15 Largest Credit Unions in the United States 

15. Bethpage Federal Credit Union Assets (as of 2021): $11.94 billion

14. Security Service Federal Credit Union Assets (as of 2021): $12.76 billion

13. VyStar Assets (as of 2020): $13.66 billion

12. Mountain America Credit Union Assets (as of 2021): $15.84 billion

11. Randolph-Brooks Federal Credit Union Assets (as of 2021): $16.0 billion

10. Suncoast Credit Union Assets (as of 2021): $16.22 billion

9. First Tech Federal Credit Union Assets (as of 2021): $16.70 billion

8. America First Credit Union Assets (as of 2021): $17.38 billion

7. Golden 1 Credit Union Assets (as of 2020): $18.48 billion

6. Alliant Credit Union Assets (as of 2021): $18.74 billion

5. SchoolsFirst Federal Credit Union Assets (as of 2021): $28.16 billion

4. BECU Assets (as of 2021): $28.78 billion

3. Pentagon Federal Credit Union Assets (as of 2021): $33.53 billion

2. State Employees Credit Union Assets (as of 2021): $50.97 billion

1. Navy Federal Credit Union Assets (as of 2021): $156.65 billion