RANKING ·
Largest net interest margin improvement in North Dakota
47 of 60 banks in North Dakota 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 | First State Bank | Buxton, ND | +77 bps | $424 million |
| 2 | First United Bank | Park River, ND | +74 bps | $811 million |
| 3 | Bell Bank | Fargo, ND | +64 bps | $15.2 billion |
| 4 | Farmers and Merchants State Bank | Langdon, ND | +52 bps | $143 million |
| 5 | Starion Bank | Bismarck, ND | +51 bps | $2.1 billion |
| 6 | Border Bank | Fargo, ND | +49 bps | $1.1 billion |
| 7 | First Western Bank and Trust | Minot, ND | +47 bps | $2.4 billion |
| 8 | Alerus Financial N.A. | Grand Forks, ND | +44 bps | $5.3 billion |
| 9 | Kirkwood Bank and Trust Company | Bismarck, ND | +42 bps | $351 million |
| 10 | Unison Bank | Jamestown, ND | +33 bps | $597 million |
| 11 | Cornerstone Bank | Fargo, ND | +33 bps | $1.9 billion |
| 12 | First State Bank & Trust | Williston, ND | +33 bps | $543 million |
| 13 | Gate City Bank | Fargo, ND | +31 bps | $4.0 billion |
| 14 | Dakota Community Bank & Trust N.A. | Hebron, ND | +29 bps | $1.4 billion |
| 15 | Dakota Western Bank | Bowman, ND | +28 bps | $416 million |
| 16 | Stock Growers Bank | Forman, ND | +27 bps | $333 million |
| 17 | Union State Bank of Hazen | Hazen, ND | +27 bps | $257 million |
| 18 | Bravera Bank | Dickinson, ND | +27 bps | $3.8 billion |
| 19 | Horizon Financial Bank | Munich, ND | +26 bps | $201 million |
| 20 | American Federal Bank | Fargo, ND | +26 bps | $796 million |
| 21 | The Goose River Bank | Mayville, ND | +25 bps | $173 million |
| 22 | Western State Bank | Devils Lake, ND | +25 bps | $2.5 billion |
| 23 | Trucommunity Bank | Garrison, ND | +24 bps | $338 million |
| 24 | Lincoln State Bank | Hankinson, ND | +22 bps | $125 million |
| 25 | The Bank of Tioga | Tioga, ND | +20 bps | $412 million |
| 26 | American State Bank & Trust Company of Williston | Williston, ND | +20 bps | $643 million |
| 27 | Choice Financial Group | Fargo, ND | +18 bps | $6.4 billion |
| 28 | United Valley Bank | Cavalier, ND | +16 bps | $752 million |
| 29 | First National Bank and Trust Company of Bottineau | Bottineau, ND | +12 bps | $176 million |
| 30 | First International Bank and Trust | Watford City, ND | +11 bps | $6.2 billion |
| 31 | State Bank & Trust of Kenmare | Kenmare, ND | +9 bps | $201 million |
| 32 | Kodabank | Drayton, ND | +9 bps | $560 million |
| 33 | Dakota Heritage Bank | Hunter, ND | +6 bps | $417 million |
| 34 | Merchants Bank | Rugby, ND | +6 bps | $254 million |
| 35 | The Union Bank | Beulah, ND | +3 bps | $312 million |
| 36 | Banknorth | Arthur, ND | 0 bps | $694 million |
| 37 | Liberty State Bank | Powers Lake, ND | -1 bps | $159 million |
| 38 | Bank Forward | Fargo, ND | -5 bps | $1.1 billion |
| 39 | Peoples State Bank of Velva | Velva, ND | -10 bps | $210 million |
| 40 | First State Bank of Golva | Golva, ND | -14 bps | $124 million |
| 41 | Commercial Bank of Mott | Mott, ND | -15 bps | $140 million |
| 42 | Security First Bank of North Dakota | New Salem, ND | -16 bps | $293 million |
| 43 | Strasburg State Bank | Strasburg, ND | -19 bps | $104 million |
| 44 | State Bank of Bottineau | Bottineau, ND | -21 bps | $117 million |
| 45 | Farmers & Merchants Bank of North Dakota | Tolna, ND | -29 bps | $120 million |
| 46 | Mcintosh County Bank | Ashley, ND | -36 bps | $119 million |
| 47 | Turtle Mountain State Bank | Belcourt, ND | -57 bps | $114 million |
Rankings sort one published measure; they are not an overall judgment of any institution. Methodology · All rankings