RANKING ·
Highest net interest margin in District of Columbia
11 of 28 credit unions in District of Columbia that filed for the quarter ended June 30, 2026 are ranked. At least $100 million in total assets. Institutions with equal values share a rank. Source: NCUA Call Report data.
| Rank | Institution | Headquarters | Net interest margin on average assets | Total assets |
|---|---|---|---|---|
| 1 | Advantage Financial Federal Credit Union | Washington, DC | 3.88% | $103 million |
| 2 | Treasury Department Federal Credit Union | Washington, DC | 3.69% | $177 million |
| 3 | Department of the Interior Federal Credit Union | Washington, DC | 3.48% | $268 million |
| 4 | Wright Patman Congressional Federal Credit Union | Washington, DC | 3.36% | $1.3 billion |
| 5 | O.A.S. Staff Federal Credit Union | Washington, DC | 3.10% | $282 million |
| 6 | F R B Federal Credit Union | Washington, DC | 3.09% | $123 million |
| 7 | Dept of Labor Federal Credit Union | Washington, DC | 2.98% | $138 million |
| 8 | Library of Congress Federal Credit Union | Washington, DC | 2.95% | $338 million |
| 9 | Department of Commerce Federal Credit Union | Washington, DC | 2.90% | $739 million |
| 10 | Bank Fund Staff Federal Credit Union | Washington, DC | 2.52% | $7.1 billion |
| 11 | Idb Global Federal Credit Union | Washington, DC | 2.50% | $842 million |
Rankings sort one published measure; they are not an overall judgment of any institution. Methodology · All rankings