RANKING ·
Largest net interest margin improvement in Wyoming
20 of 24 banks in Wyoming 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: FDIC quarterly financial data.
| Rank | Institution | Headquarters | Net interest margin, change over 12 months | Total assets |
|---|---|---|---|---|
| 1 | Uinta Bank | Jackson, WY | +256 bps | $222 million |
| 2 | Pinnacle Bank - Wyoming | Cody, WY | +69 bps | $1.3 billion |
| 3 | Sundance State Bank | Sundance, WY | +59 bps | $291 million |
| 4 | First Federal Bank & Trust | Sheridan, WY | +48 bps | $621 million |
| 5 | Security State Bank | Basin, WY | +45 bps | $449 million |
| 6 | Central Bank and Trust | Lander, WY | +40 bps | $203 million |
| 7 | Big Horn Federal Savings Bank | Greybull, WY | +40 bps | $400 million |
| 8 | Hilltop National Bank | Casper, WY | +35 bps | $1.1 billion |
| 9 | Wyoming Community Bank | Riverton, WY | +27 bps | $262 million |
| 10 | First Northern Bank of Wyoming | Buffalo, WY | +25 bps | $983 million |
| 11 | Buffalo Federal Bank | Buffalo, WY | +21 bps | $203 million |
| 12 | Jonah Bank of Wyoming | Casper, WY | +20 bps | $563 million |
| 13 | First National Bank of Gillette | Gillette, WY | +16 bps | $652 million |
| 14 | Rnb State Bank | Rawlins, WY | +13 bps | $296 million |
| 15 | Rsnb Bank | Rock Springs, WY | +12 bps | $381 million |
| 16 | Platte Valley Bank | Torrington, WY | +11 bps | $809 million |
| 17 | Bank of Commerce | Rawlins, WY | +7 bps | $216 million |
| 18 | The Bank of Star Valley | Afton, WY | +7 bps | $420 million |
| 19 | State Bank | Green River, WY | -6 bps | $115 million |
| 20 | The Converse County Bank | Douglas, WY | -15 bps | $1.1 billion |
Rankings sort one published measure; they are not an overall judgment of any institution. Methodology · All rankings