FDIC-insured bank
First Northern Bank of Wyoming — Buffalo, WY
Bank headquartered in Buffalo, Wyoming, part of FIRST NATL BUFFALO BANKSHARES.
Source: FDIC BankFind Suite, data as of June 30, 2026, fetched September 5, 2026
Headquarters and contact
| Address | 141 S Main St Buffalo, WY 82834 |
| County | Johnson |
| Website | fnbofwyo.com |
| Phone | not published in FDIC data, see the bank's website |
FDIC record
| FDIC Certificate | 2208 |
| Federal Reserve RSSD ID | 868956 |
| Status | Active |
| Charter class | SM (STATE) |
| Holding company | FIRST NATL BUFFALO BANKSHARES |
| Domestic offices | 5 |
| Financials as of | June 30, 2026 |
How to find your First Northern Bank of Wyoming 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 fnbofwyo.com.
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Offices nearest to headquarters
| First Northern Bank Of Wyoming main office Buffalo, WY |
141 S Main St, 82834 |
| Sheridan Branch Sheridan, WY |
29 N Gould St, 82801 |
| Gillette Branch Gillette, WY |
200 S Kendrick Ave, 82716 |
| Douglas Branch Douglas, WY |
709 S Fourth Street, 82633 |
| Newcastle Branch Newcastle, WY |
24 N Sumner Ave, 82701 |
Where First Northern Bank of Wyoming has offices
Cities with the most First Northern Bank of Wyoming offices
Other banks headquartered in Buffalo
| Buffalo Federal Bank | $202.58 million |
Largest banks headquartered elsewhere in Wyoming
| Pinnacle Bank - Wyoming Cody | $1.30 billion |
| Hilltop National Bank Casper | $1.14 billion |
| The Converse County Bank Douglas | $1.09 billion |
| Platte Valley Bank Torrington | $809.18 million |
| First National Bank of Gillette Gillette | $651.93 million |
| First Federal Bank & Trust Sheridan | $621.05 million |
| Jonah Bank of Wyoming Casper | $562.80 million |
| Security State Bank Basin | $449.14 million |
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