RANKING ·
Largest net interest margin improvement in Montana
17 of 41 credit unions in Montana that filed for the quarter ended June 30, 2026 are ranked. At least $100 million in total assets and a comparable quarter a year earlier. Institutions with equal values share a rank. Source: NCUA Call Report data.
| Rank | Institution | Headquarters | Net interest margin, change over 12 months | Total assets |
|---|---|---|---|---|
| 1 | Sky Federal Credit Union | Livingston, MT | +52 bps | $197 million |
| 2 | Billings Federal Credit Union | Billings, MT | +39 bps | $216 million |
| 3 | Park Side Financial Credit Union | Whitefish, MT | +36 bps | $390 million |
| 4 | Fergus Federal Credit Union | Lewistown, MT | +29 bps | $118 million |
| 5 | Lincoln County Credit Union | Libby, MT | +28 bps | $187 million |
| 6 | Richland Federal Credit Union | Sidney, MT | +26 bps | $119 million |
| 7 | Clearwater Federal Credit Union | Missoula, MT | +26 bps | $1.2 billion |
| 8 | Rocky Mountain Credit Union | Helena, MT | +25 bps | $427 million |
| 9 | Whitefish Credit Union Association | Whitefish, MT | +24 bps | $2.1 billion |
| 10 | Intrepid Credit Union | Helena, MT | +22 bps | $311 million |
| 11 | 1st Liberty Federal Credit Union | Great Falls, MT | +14 bps | $214 million |
| 12 | Russell Country Federal Credit Union | Great Falls, MT | +5 bps | $131 million |
| 13 | Montana Federal Credit Union | Great Falls, MT | +4 bps | $362 million |
| 14 | Grasslands Federal Credit Union | Circle, MT | -1 bps | $141 million |
| 15 | Altana Federal Credit Union | Billings, MT | -10 bps | $668 million |
| 16 | Valley Financial Credit Union | Billings, MT | -16 bps | $601 million |
| 17 | Southwest Montana Community Federal Credit Union | Anaconda, MT | -216 bps | $203 million |
Rankings sort one published measure; they are not an overall judgment of any institution. Methodology · All rankings