Branch Network
Oklahoma State Bank Locations & Branches Buffalo, Oklahoma
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Oklahoma State Bank operates 2 branches from its headquarters in Buffalo, OK, .
Oklahoma State Bank branch network
Both branches are in OKLAHOMA, across 2 cities. Its largest office by deposits is its main office in Buffalo, OK, with $38.6M (64.9% of its branch deposits). It had the same number of branches on June 30, 2025.
Oklahoma State Bank at a glance
Its CET1 capital ratio was 14.51% at Q2 2026, comfortably above the 7% level required once the capital conservation buffer is included.
- Total assets, Q2 2026
- $66.7M
- CET1 ratio, Q2 2026
- 14.51%
- Deposit insurance
- FDIC
- Regulator
- FDIC
- Established
- 1930
Full financial profile · Is Oklahoma State Bank safe? · Routing number
Deposit market share
Share of all FDIC-insured deposits held in each area, from the June 30, 2026 Summary of Deposits. Rank 1 is the largest holder. Shares are by bank charter, not by holding company.
| Area | Rank | Deposit share | Deposits |
|---|---|---|---|
| City: Buffalo, OK (1 branch) | 1 of 1 | 100.0% | $38.6M |
| State: OK (2 branches) | 162 of 192 | <0.1% | $59.5M |
Ranked by total assets among banks headquartered in the state: Largest banks in Oklahoma.
Share by county and metro area
Oklahoma State Bank's share of FDIC-insured deposits in the counties and metro areas where it has branches, from the June 30, 2026 Summary of Deposits. Up to the ten largest of each are shown, by the bank's deposits. Rank 1 is the largest holder. Banks only: credit unions are not in the Summary of Deposits.
Counties
| County | Rank | Deposit share | Deposits | County total |
|---|---|---|---|---|
| Harper, OK (1 branch) | 2 of 2 | 35.5% | $38.6M | $108.8M |
| Ellis, OK (1 branch) | 3 of 3 | 11.4% | $20.9M | $183.1M |
Metro areas
| Metro area | Rank | Deposit share | Deposits | Metro total |
|---|---|---|---|---|
| Woodward, OK (1 branch) | 10 of 11 | 1.8% | $20.9M | $1.16B |
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| Oklahoma State Bank (main office) | Buffalo, OK | 73834 | $38.6M |
| Gage Branch | Gage, OK | 73843 | $20.9M |
Source: FDIC Summary of Deposits, June 30, 2026. How the survey works.
Regulator records: FDIC BankFind (cert 13416) · FFIEC NIC profile (RSSD 324256)