RANKING ·
Highest net interest margin 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. Institutions with equal values share a rank. Source: FDIC quarterly financial data.
| Rank | Institution | Headquarters | Net interest margin | Total assets |
|---|---|---|---|---|
| 1 | Platte Valley Bank | Torrington, WY | 5.38% | $809 million |
| 2 | Jonah Bank of Wyoming | Casper, WY | 5.03% | $563 million |
| 3 | Central Bank and Trust | Lander, WY | 4.68% | $203 million |
| 4 | Buffalo Federal Bank | Buffalo, WY | 4.45% | $203 million |
| 5 | State Bank | Green River, WY | 4.41% | $115 million |
| 6 | The Bank of Star Valley | Afton, WY | 4.39% | $420 million |
| 7 | Sundance State Bank | Sundance, WY | 4.35% | $291 million |
| 8 | Wyoming Community Bank | Riverton, WY | 4.32% | $262 million |
| 9 | First Northern Bank of Wyoming | Buffalo, WY | 4.30% | $983 million |
| 10 | Bank of Commerce | Rawlins, WY | 4.26% | $216 million |
| 11 | Pinnacle Bank - Wyoming | Cody, WY | 4.16% | $1.3 billion |
| 12 | Rnb State Bank | Rawlins, WY | 3.99% | $296 million |
| 13 | Uinta Bank | Jackson, WY | 3.97% | $222 million |
| 14 | Hilltop National Bank | Casper, WY | 3.85% | $1.1 billion |
| 15 | First Federal Bank & Trust | Sheridan, WY | 3.78% | $621 million |
| 16 | Big Horn Federal Savings Bank | Greybull, WY | 3.35% | $400 million |
| 17 | Security State Bank | Basin, WY | 3.33% | $449 million |
| 18 | Rsnb Bank | Rock Springs, WY | 3.28% | $381 million |
| 19 | First National Bank of Gillette | Gillette, WY | 3.09% | $652 million |
| 20 | The Converse County Bank | Douglas, WY | 2.10% | $1.1 billion |
Rankings sort one published measure; they are not an overall judgment of any institution. Methodology · All rankings