RANKING ·
Highest net interest margin in Michigan
65 of 74 banks in Michigan 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 | Oxford Bank | Oxford, MI | 5.61% | $931 million |
| 2 | First Community Bank | Harbor Springs, MI | 5.50% | $414 million |
| 3 | Capitol National Bank | Lansing, MI | 5.29% | $209 million |
| 4 | Citizens State Bank | Royal Oak, MI | 5.26% | $581 million |
| 5 | Tri-County Bank | Brown City, MI | 5.04% | $639 million |
| 6 | Central Savings Bank | Sault Sainte Mar, MI | 5.03% | $517 million |
| 7 | Sidney State Bank | Sidney, MI | 5.03% | $139 million |
| 8 | Bay Port State Bank | Bay Port, MI | 4.97% | $153 million |
| 9 | First National Bank of America | East Lansing, MI | 4.90% | $6.8 billion |
| 10 | Eastern Michigan Bank | Croswell, MI | 4.88% | $554 million |
| 11 | Baybank | Gladstone, MI | 4.88% | $173 million |
| 12 | State Savings Bank | Frankfort, MI | 4.87% | $431 million |
| 13 | Charlevoix State Bank | Charlevoix, MI | 4.74% | $248 million |
| 14 | Thumb Bank & Trust | Pigeon, MI | 4.71% | $673 million |
| 15 | Upper Peninsula State Bank | Escanaba, MI | 4.58% | $372 million |
| 16 | Bank Michigan | Brooklyn, MI | 4.57% | $176 million |
| 17 | Kalamazoo County State Bank | Schoolcraft, MI | 4.55% | $118 million |
| 18 | Alden State Bank | Alden, MI | 4.52% | $318 million |
| 19 | Century Bank and Trust | Coldwater, MI | 4.49% | $494 million |
| 20 | Bank of Ann Arbor | Ann Arbor, MI | 4.47% | $3.5 billion |
| 21 | First Bank, Upper Michigan | Gladstone, MI | 4.46% | $629 million |
| 22 | University Bank | Ann Arbor, MI | 4.43% | $1.2 billion |
| 23 | Union Bank | Grand Rapids, MI | 4.42% | $397 million |
| 24 | The Miners State Bank | Iron River, MI | 4.34% | $135 million |
| 25 | Chelsea State Bank | Chelsea, MI | 4.33% | $417 million |
| 26 | Macatawa Bank N.A. | Holland, MI | 4.33% | $3.7 billion |
| 27 | 1st State Bank | Saginaw, MI | 4.32% | $490 million |
| 28 | The Dart Bank | Mason, MI | 4.29% | $1.5 billion |
| 29 | Huron Valley State Bank | Milford, MI | 4.26% | $292 million |
| 30 | Honor Bank | Honor, MI | 4.24% | $443 million |
| 31 | Lake-Osceola State Bank | Baldwin, MI | 4.22% | $469 million |
| 32 | Commercial Bank | Ithaca, MI | 4.12% | $553 million |
| 33 | Range Bank | Marquette, MI | 4.11% | $604 million |
| 34 | Citizens National Bank of Cheboygan | Cheboygan, MI | 4.09% | $471 million |
| 35 | County National Bank | Hillsdale, MI | 4.07% | $1.4 billion |
| 36 | Northstar Bank | Bad Axe, MI | 4.06% | $1.2 billion |
| 37 | First National Bank & Trust | Iron Mountain, MI | 4.05% | $386 million |
| 38 | Huron Community Bank | East Tawas, MI | 4.02% | $323 million |
| 39 | West Shore Bank | Ludington, MI | 3.97% | $834 million |
| 40 | United Bank of Michigan | Grand Rapids, MI | 3.90% | $1.1 billion |
| 41 | Superior National Bank | Hancock, MI | 3.87% | $1.0 billion |
| 42 | Sturgis Bank & Trust Company | Sturgis, MI | 3.87% | $1.0 billion |
| 43 | The Shelby State Bank | Shelby, MI | 3.84% | $397 million |
| 44 | West Michigan Community Bank | Hudsonville, MI | 3.84% | $1.2 billion |
| 45 | G.W. Jones Exchange Bank | Marcellus, MI | 3.83% | $123 million |
| 46 | First State Bank | Eastpointe, MI | 3.77% | $1.3 billion |
| 47 | Choiceone Bank | Sparta, MI | 3.76% | $4.5 billion |
| 48 | Blissfield State Bank | Blissfield, MI | 3.75% | $115 million |
| 49 | Independent Bank | Grand Rapids, MI | 3.75% | $5.7 billion |
| 50 | First Independence Bank | Detroit, MI | 3.63% | $875 million |
| 51 | Mercantile Bank | Grand Rapids, MI | 3.61% | $6.2 billion |
| 52 | Eaton Community Bank | Charlotte, MI | 3.61% | $543 million |
| 53 | Southern Michigan Bank & Trust | Coldwater, MI | 3.60% | $1.7 billion |
| 54 | Isabella Bank | Mount Pleasant, MI | 3.59% | $2.2 billion |
| 55 | Community Unity Bank | Birmingham, MI | 3.53% | $107 million |
| 56 | Highpoint Community Bank | Hastings, MI | 3.51% | $592 million |
| 57 | First National Bank of Michigan | Kalamazoo, MI | 3.47% | $989 million |
| 58 | Peoples State Bank of Munising | Munising, MI | 3.43% | $190 million |
| 59 | The State Savings Bank of Manistique | Manistique, MI | 3.29% | $178 million |
| 60 | Mi Bank | Bloomfield Towns, MI | 3.29% | $245 million |
| 61 | Northern Interstate Bank N.A. | Norway, MI | 3.19% | $194 million |
| 62 | The First National Bank of Saint Ignace | St. Ignace, MI | 3.00% | $336 million |
| 63 | Grand River Bank | Grandville, MI | 2.94% | $507 million |
| 64 | Dearborn Federal Savings Bank | Dearborn, MI | 2.69% | $307 million |
| 65 | Northpointe Bank | Grand Rapids, MI | 2.48% | $7.5 billion |
Rankings sort one published measure; they are not an overall judgment of any institution. Methodology · All rankings