FDIC-insured bank

First Northern Bank of Wyoming

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
Total assets
$982.64 million
Total deposits
$869.83 million
Branches
5
FDIC-insured since
1934
Established
1885

Headquarters and contact

Address141 S Main St
Buffalo, WY 82834
CountyJohnson
Websitefnbofwyo.com
Phonenot published in FDIC data, see the bank's website

FDIC record

FDIC Certificate2208
Federal Reserve RSSD ID868956
StatusActive
Charter classSM (STATE)
Holding companyFIRST NATL BUFFALO BANKSHARES
Domestic offices5
Financials as ofJune 30, 2026

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

Other banks headquartered in Buffalo

Buffalo Federal Bank$202.58 million