FDIC-insured bank
The First National Bank of St. Ignace — St. Ignace, MI
Bank headquartered in St. Ignace, Michigan, part of MACKINAC NATIONAL BCORP INC.
Source: FDIC BankFind Suite, data as of June 30, 2026, fetched September 5, 2026
Headquarters and contact
| Address | 132 N State St St. Ignace, MI 49781 |
| County | Mackinac |
| Website | www.fnbsi.com |
| Phone | not published in FDIC data, see the bank's website |
FDIC record
| FDIC Certificate | 5074 |
| Federal Reserve RSSD ID | 381950 |
| Status | Active |
| Charter class | N (OCC) |
| Holding company | MACKINAC NATIONAL BCORP INC |
| Domestic offices | 7 |
| Financials as of | June 30, 2026 |
How to find your The First National Bank of St. Ignace routing number
FDIC does not publish ABA routing numbers, and many banks use different routing numbers by state or by account type. The reliable places to find yours: the bottom left of a check from this bank, the "account details" screen in its online banking, or its official website at www.fnbsi.com.
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Offices nearest to headquarters
| The First National Bank Of St. Ignace main office St. Ignace, MI |
132 N State St, 49781 |
| North Bay Branch St. Ignace, MI |
580 N State St, 49781 |
| Moran Township Branch Saint Ignace, MI |
920 Us Highway 2 W, 49781 |
| Mackinac Island Branch Mackinac Island, MI |
7399 Market St, 49757 |
| Cedarville Branch Cedarville, MI |
192 South Meridian Street, 49719 |
| West Mackinac Branch Naubinway, MI |
W11635 Us Highway 2, 49762 |
| Newberry Branch Newberry, MI |
1014 Newberry Ave, 49868 |
Where The First National Bank of St. Ignace has offices
Cities with the most The First National Bank of St. Ignace offices
Largest banks headquartered elsewhere in Michigan
| Northpointe Bank Grand Rapids | $7.53 billion |
| First National Bank of America East Lansing | $6.82 billion |
| Mercantile Bank Grand Rapids | $6.24 billion |
| Independent Bank Grand Rapids | $5.66 billion |
| ChoiceOne Bank Sparta | $4.45 billion |
| Macatawa Bank, National Association Holland | $3.69 billion |
| Bank of Ann Arbor Ann Arbor | $3.50 billion |
| Isabella Bank Mount Pleasant | $2.17 billion |
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