RANKING ·
Fastest membership growth in Oklahoma
28 of 52 credit unions in Oklahoma that filed for the quarter ended June 30, 2026 are ranked. At least 5,000 members a year earlier; probable mergers left out. Institutions with equal values share a rank. Source: NCUA Call Report data.
| Rank | Institution | Headquarters | Members, change over 12 months | Total assets |
|---|---|---|---|---|
| 1 | Oklahoma'S Federal Credit Union | Oklahoma City, OK | +8.1% | $954 million |
| 2 | First Family Federal Credit Union | Henryetta, OK | +5.3% | $154 million |
| 3 | Ou Federal Credit Union | Norman, OK | +5.1% | $82.7 million |
| 4 | Truity Federal Credit Union | Bartlesville, OK | +3.6% | $1.3 billion |
| 5 | Weokie Federal Credit Union | Oklahoma City, OK | +3.3% | $1.5 billion |
| 6 | Westreet Federal Credit Union | Tulsa, OK | +2.7% | $967 million |
| 7 | Communication Federal Credit Union | Oklahoma City, OK | +2.7% | $2.4 billion |
| 8 | Tinker Federal Credit Union | Oklahoma City, OK | +2.4% | $6.1 billion |
| 9 | Western Sun Federal Credit Union | Broken Arrow, OK | +2.3% | $181 million |
| 10 | Oklahoma Central Credit Union | Tulsa, OK | +1.1% | $760 million |
| 11 | Cherokee Strip Credit Union | Ponca City, OK | +1.1% | $106 million |
| 12 | Red Crown Federal Credit Union | Tulsa, OK | +0.5% | $257 million |
| 13 | Allegiance Federal Credit Union | Oklahoma City, OK | -0.1% | $372 million |
| 14 | Fort Sill Federal Credit Union | Lawton, OK | -0.6% | $394 million |
| 15 | Red River Federal Credit Union | Altus, OK | -0.7% | $168 million |
| 16 | The Focus Federal Credit Union | Oklahoma City, OK | -0.7% | $163 million |
| 17 | Okunity Federal Credit Union | Stillwater, OK | -0.9% | $215 million |
| 18 | Saint Francis Employees Federal Credit Union | Tulsa, OK | -1.1% | $44.7 million |
| 19 | True Sky Federal Credit Union | Oklahoma City, OK | -1.1% | $778 million |
| 20 | Ttcu Federal Credit Union | Tulsa, OK | -1.5% | $2.7 billion |
| 21 | Dfcu Tulsa Federal Credit Union | Tulsa, OK | -1.7% | $65.5 million |
| 22 | Muskogee Federal Credit Union | Muskogee, OK | -1.9% | $112 million |
| 23 | Endurance Federal Credit Union | Duncan, OK | -2.1% | $196 million |
| 24 | Municipal Emps CU of Oklahoma City | Oklahoma City, OK | -4.2% | $190 million |
| 25 | Oklahoma Federal Credit Union | Oklahoma City, OK | -7.3% | $199 million |
| 26 | Energy One Federal Credit Union | Tulsa, OK | -8.9% | $301 million |
| 27 | Oklahoma Educators Credit Union | Oklahoma City, OK | -9.9% | $305 million |
| 28 | U. S. Employees O. C. Federal Credit Union | Oklahoma City, OK | -13.6% | $213 million |
Rankings sort one published measure; they are not an overall judgment of any institution. Methodology · All rankings