Branch Network
Security State Bank Locations & Branches Basin, Wyoming
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Security State Bank operates 5 branches from its headquarters in Basin, WY, .
Security State Bank branch network
All 5 branches are in WYOMING, across 4 cities. Basin, WY has the most of its branches, 2. Its largest office by deposits is the Gillette Branch office in Gillette, WY, with $107.3M (28.2% of its branch deposits). It had the same number of branches on June 30, 2025.
Security State Bank at a glance
Its CET1 capital ratio was 16.19% at Q2 2026, comfortably above the 7% level required once the capital conservation buffer is included.
- Total assets, Q2 2026
- $449.1M
- CET1 ratio, Q2 2026
- 16.19%
- Deposit insurance
- FDIC
- Regulator
- Federal Reserve
- Latest call report
- Q2 2026, FFIEC 051
- Established
- 1929
Full financial profile · Is Security State Bank safe? · Security State Bank 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: Basin, WY (2 branches) | 1 of 1 | 100.0% | $100.0M |
| State: WY (5 branches) | 16 of 44 | 1.7% | $380.1M |
Ranked by total assets among banks headquartered in the state: Largest banks in Wyoming.
Share by county and metro area
Security 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 |
|---|---|---|---|---|
| Campbell, WY (1 branch) | 4 of 9 | 7.3% | $107.3M | $1.48B |
| Big Horn, WY (2 branches) | 3 of 4 | 20.7% | $100.0M | $483.6M |
| Sheridan, WY (1 branch) | 4 of 11 | 7.1% | $97.7M | $1.38B |
| Washakie, WY (1 branch) | 2 of 4 | 22.6% | $75.1M | $332.1M |
Metro areas
| Metro area | Rank | Deposit share | Deposits | Metro total |
|---|---|---|---|---|
| Gillette, WY (1 branch) | 7 of 12 | 5.0% | $107.3M | $2.14B |
| Sheridan, WY (1 branch) | 4 of 11 | 7.1% | $97.7M | $1.38B |
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| Gillette Branch | Gillette, WY | 82718 | $107.3M |
| Sheridan Branch | Sheridan, WY | 82801 | $97.7M |
| Security State Bank (main office) | Basin, WY | 82410 | $95.8M |
| Worland Branch | Worland, WY | 82401 | $75.1M |
| AdministrativeExecutive Branch | Basin, WY | 82410 | $4.2M |
Source: FDIC Summary of Deposits, June 30, 2026. How the survey works.
Regulator records: FDIC BankFind (cert 12592) · FFIEC NIC profile (RSSD 955959)