FDIC-insured bank
Armstrong Bank — Muskogee, OK
Bank headquartered in Muskogee, Oklahoma, part of IRONHORSE FINANCIAL GROUP INC.
Source: FDIC BankFind Suite, data as of June 30, 2026, fetched September 5, 2026
Headquarters and contact
| Address | 1215 W Okmulgee St Muskogee, OK 74401 |
| County | Muskogee |
| Metro area | Muskogee, OK |
| Website | www.armstrong.bank |
| Phone | not published in FDIC data, see the bank's website |
FDIC record
| FDIC Certificate | 2315 |
| Federal Reserve RSSD ID | 470452 |
| Status | Active |
| Charter class | SM (STATE) |
| Holding company | IRONHORSE FINANCIAL GROUP INC |
| Domestic offices | 29 |
| Financials as of | June 30, 2026 |
How to find your Armstrong Bank 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.armstrong.bank.
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Offices nearest to headquarters
| Armstrong Bank main office Muskogee, OK |
1215 W Okmulgee St, 74401 |
| Chandler Branch Muskogee, OK |
2520 Chandler Rd, 74403 |
| Fort Gibson Branch Fort Gibson, OK |
803 S Lee St, 74434 |
| Wagoner Location Branch Wagoner, OK |
1500 State Highway 51, 74467 |
| Warner Branch Warner, OK |
810 Campbell Ave, 74469 |
| Checotah Branch Checotah, OK |
1111 W Gentry Ave, 74426 |
| North Main Branch Gore, OK |
409 N Main St, 74435 |
| Tahlequah Branch Tahlequah, OK |
1401 S Muskogee Ave, 74464 |
| Downing Tahlequah East Branch Tahlequah, OK |
1364 E Downing St, 74464 |
| Vian Branch Vian, OK |
102 West Schley Street, 74962 |
| Bixby Branch Bixby, OK |
13112 S Memorial Dr, 74008 |
| 1700 South Lynn Riggs Branch Claremore, OK |
1700 S Lynn Riggs Blvd, 74017 |
30 offices in total. Browse them by city through the state pages.
Where Armstrong Bank has offices
Cities with the most Armstrong Bank offices
Largest banks headquartered elsewhere in Oklahoma
| BOKF, National Association Tulsa | $52.98 billion |
| MidFirst Bank Oklahoma City | $42.83 billion |
| First United Bank and Trust Company Durant | $16.59 billion |
| BancFirst Oklahoma City | $12.80 billion |
| Stride Bank, National Association Enid | $5.42 billion |
| InterBank Oklahoma City | $5.33 billion |
| RCB Bank Claremore | $3.98 billion |
| First Fidelity Bank Oklahoma City | $2.98 billion |
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