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First Security Bank and Trust Company Locations & Branches Charles City, Iowa
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First Security Bank and Trust Company operates 8 branches from its headquarters in Charles City, IA, .
First Security Bank and Trust Company branch network
All 8 branches are in IOWA, across 7 cities. Hampton, IA has the most of its branches, 2. Its largest office by deposits is its main office in Charles City, IA, with $163.8M (34.9% of its branch deposits). On June 30, 2025 it had 11 branches, 3 more than in 2026.
First Security Bank and Trust Company at a glance
Its CET1 capital ratio was 14.85% at Q2 2026, comfortably above the 7% level required once the capital conservation buffer is included.
- Total assets, Q2 2026
- $538.2M
- CET1 ratio, Q2 2026
- 14.85%
- Deposit insurance
- FDIC
- Regulator
- FDIC
- Latest call report
- Q2 2026, FFIEC 051
- Established
- 1903
Full financial profile · Is First Security Bank and Trust Company safe? · First Security Bank and Trust Company 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: Charles City, IA (1 branch) | 2 of 4 | 33.5% | $163.8M |
| State: IA (8 branches) | 58 of 261 | 0.4% | $469.0M |
Ranked by total assets among banks headquartered in the state: Largest banks in Iowa.
Share by county and metro area
First Security Bank and Trust Company'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 |
|---|---|---|---|---|
| Floyd, IA (3 branches) | 1 of 4 | 45.8% | $274.9M | $600.0M |
| Franklin, IA (2 branches) | 3 of 4 | 16.9% | $82.7M | $488.4M |
| Mitchell, IA (1 branch) | 5 of 6 | 6.6% | $47.2M | $715.3M |
| Cerro Gordo, IA (1 branch) | 8 of 9 | 2.0% | $37.2M | $1.85B |
| Worth, IA (1 branch) | 3 of 3 | 12.1% | $27.0M | $222.5M |
Metro areas
| Metro area | Rank | Deposit share | Deposits | Metro total |
|---|---|---|---|---|
| Mason City, IA (2 branches) | 8 of 9 | 3.1% | $64.2M | $2.07B |
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| First Security Bank and Trust Company (main office) | Charles City, IA | 50616 | $163.8M |
| Old Hampton State Bank | Hampton, IA | 50441 | $82.7M |
| Rockford Branch | Rockford, IA | 50468 | $57.6M |
| Nora Springs Branch | Nora Springs, IA | 50458 | $53.4M |
| Riceville Branch | Riceville, IA | 50466 | $47.2M |
| Rockwell Branch | Rockwell, IA | 50469 | $37.2M |
| Manly Branch | Manly, IA | 50456 | $27.0M |
| Drive-In Branch | Hampton, IA | 50441 | $0 |
Source: FDIC Summary of Deposits, June 30, 2026. How the survey works.
Regulator records: FDIC BankFind (cert 1852) · FFIEC NIC profile (RSSD 894544)