Branch Network
Shamrock Bank, N.A. Locations & Branches Coalgate, Oklahoma
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Shamrock Bank, N.A. operates 8 branches from its headquarters in Coalgate, OK, .
Shamrock Bank, N.A. branch network
All 8 branches are in OKLAHOMA, across 8 cities. Its largest office by deposits is the Shamrock Bank, N.A. office in Coalgate, OK, with $115.8M (25.6% of its branch deposits). It had the same number of branches on June 30, 2025.
Shamrock Bank, N.A. at a glance
It reports no CET1 ratio; its Tier 1 leverage ratio was 10.79% at Q2 2026, above the 9% community bank leverage ratio requirement for being considered well capitalized.
- Total assets, Q2 2026
- $501.5M
- Tier 1 leverage ratio, Q2 2026
- 10.79%
- Deposit insurance
- FDIC
- Regulator
- OCC
- Latest call report
- Q2 2026, FFIEC 051
- Established
- 1924
Full financial profile · Is Shamrock Bank, N.A. safe? · Shamrock Bank, N.A. call report · 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: Coalgate, OK (1 branch) | 1 of 2 | 76.5% | $115.8M |
| State: OK (8 branches) | 53 of 192 | 0.3% | $452.9M |
Ranked by total assets among banks headquartered in the state: Largest banks in Oklahoma.
Share by county and metro area
Shamrock Bank, N.A.'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 |
|---|---|---|---|---|
| Bryan, OK (2 branches) | 3 of 6 | 3.7% | $145.1M | $3.89B |
| Coal, OK (1 branch) | 1 of 2 | 76.5% | $115.8M | $151.3M |
| Caddo, OK (1 branch) | 8 of 10 | 7.4% | $55.1M | $741.8M |
| Pushmataha, OK (1 branch) | 2 of 4 | 18.9% | $52.6M | $278.0M |
| Jackson, OK (1 branch) | 5 of 8 | 6.4% | $40.5M | $631.5M |
| Kiowa, OK (1 branch) | 5 of 6 | 14.4% | $36.5M | $254.4M |
| Oklahoma, OK (1 branch) | 56 of 60 | <0.1% | $7.2M | $47.25B |
Metro areas
| Metro area | Rank | Deposit share | Deposits | Metro total |
|---|---|---|---|---|
| Durant, OK (2 branches) | 3 of 6 | 3.7% | $145.1M | $3.89B |
| Altus, OK (1 branch) | 5 of 8 | 6.4% | $40.5M | $631.5M |
| Oklahoma City, OK (1 branch) | 69 of 71 | <0.1% | $7.2M | $60.81B |
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| Shamrock Bank, N.A. | Coalgate, OK | 74538 | $115.8M |
| Bryan County National Bank Branch | Caddo, OK | 74729 | $86.3M |
| Durant Branch | Durant, OK | 74701 | $58.9M |
| First Bank of Apache Branch | Apache, OK | 73006 | $55.1M |
| Clayton State Bank Branch | Clayton, OK | 74536 | $52.6M |
| Altus Branch | Altus, OK | 73521 | $40.5M |
| Shamrock Bank Na Branch | Mountain View, OK | 73062 | $36.5M |
| Oklahoma City Branch | Oklahoma City, OK | 73142 | $7.2M |
Source: FDIC Summary of Deposits, June 30, 2026. How the survey works.
Regulator records: FDIC BankFind (cert 4236) · FFIEC NIC profile (RSSD 300353)