Branch Network
First Citizens Bank Locations & Branches Mason City, Iowa
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First Citizens Bank operates 7 branches from its headquarters in Mason City, IA, .
First Citizens Bank branch network
Its 7 branches span 2 states and 6 cities. The most are in IOWA (6) and MINNESOTA (1). IOWA holds 86.6% of its branch deposits. Mason City, IA has the most of its branches, 2. Its largest office by deposits is its main office in Mason City, IA, with $723.1M (45.9% of its branch deposits). On June 30, 2025 it had 8 branches, 1 more than in 2026.
First Citizens Bank at a glance
Its CET1 capital ratio was 13.75% at Q2 2026, comfortably above the 7% level required once the capital conservation buffer is included.
- Total assets, Q2 2026
- $1.80B
- CET1 ratio, Q2 2026
- 13.75%
- Deposit insurance
- FDIC
- Regulator
- Federal Reserve
- Latest call report
- Q2 2026, FFIEC 051
- Established
- 1892
Full financial profile · Is First Citizens Bank safe? · First Citizens 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: Mason City, IA (2 branches) | 1 of 6 | 56.2% | $723.1M |
| State: IA (6 branches) | 20 of 261 | 1.0% | $1.37B |
Ranked by total assets among banks headquartered in the state: Largest banks in Iowa.
Share by county and metro area
First Citizens 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 |
|---|---|---|---|---|
| Cerro Gordo, IA (2 branches) | 1 of 9 | 39.1% | $723.1M | $1.85B |
| Floyd, IA (1 branch) | 2 of 4 | 37.1% | $222.3M | $600.0M |
| Kanabec, MN (1 branch) | 1 of 2 | 59.6% | $210.9M | $354.1M |
| Wright, IA (1 branch) | 1 of 6 | 34.3% | $202.0M | $588.1M |
| Mitchell, IA (1 branch) | 3 of 6 | 18.1% | $129.6M | $715.3M |
| Chickasaw, IA (1 branch) | 4 of 8 | 11.7% | $88.2M | $756.8M |
Metro areas
| Metro area | Rank | Deposit share | Deposits | Metro total |
|---|---|---|---|---|
| Mason City, IA (2 branches) | 1 of 9 | 34.9% | $723.1M | $2.07B |
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| First Citizens Bank (main office) | Mason City, IA | 50401 | $723.1M |
| 300 Main Branch | Charles City, IA | 50616 | $222.3M |
| Mora Branch | Mora, MN | 55051 | $210.9M |
| Clarion Branch | Clarion, IA | 50525 | $202.0M |
| Osage Branch | Osage, IA | 50461 | $129.6M |
| New Hampton Branch | New Hampton, IA | 50659 | $88.2M |
| Downtown Branch | Mason City, IA | 50401 | $0 |
Source: FDIC Summary of Deposits, June 30, 2026. How the survey works.
Regulator records: FDIC BankFind (cert 4433) · FFIEC NIC profile (RSSD 186744)