Branch Network
State Central Bank Locations & Branches Bonaparte, Iowa
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State Central Bank operates 4 branches from its headquarters in Bonaparte, IA, .
State Central Bank branch network
All 4 branches are in IOWA, across 4 cities. Its largest office by deposits is the Keokuk Branch Office office in Keokuk, IA, with $15.9M (31.5% of its branch deposits). It had the same number of branches on June 30, 2025.
State Central Bank at a glance
It reports no CET1 ratio; its Tier 1 leverage ratio was 16.11% at Q2 2026, above the 9% community bank leverage ratio requirement for being considered well capitalized.
- Total assets, Q2 2026
- $63.2M
- Tier 1 leverage ratio, Q2 2026
- 16.11%
- Deposit insurance
- FDIC
- Regulator
- FDIC
- Latest call report
- Q2 2026, FFIEC 051
- Established
- 1858
Full financial profile · Is State Central Bank safe? · State Central 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: Bonaparte, IA (1 branch) | 2 of 2 | 47.4% | $14.3M |
| State: IA (4 branches) | 239 of 261 | <0.1% | $50.6M |
Ranked by total assets among banks headquartered in the state: Largest banks in Iowa.
Share by county and metro area
State Central 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 |
|---|---|---|---|---|
| Van Buren, IA (3 branches) | 3 of 5 | 15.7% | $34.7M | $221.0M |
| Lee, IA (1 branch) | 6 of 6 | 1.2% | $15.9M | $1.38B |
Metro areas
| Metro area | Rank | Deposit share | Deposits | Metro total |
|---|---|---|---|---|
| Fort Madison-Keokuk, IA-IL-MO (1 branch) | 15 of 16 | 0.7% | $15.9M | $2.39B |
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| Keokuk Branch Office | Keokuk, IA | 52632 | $15.9M |
| State Central Bank (main office) | Bonaparte, IA | 52620 | $14.3M |
| Farmington Branch | Farmington, IA | 52626 | $14.1M |
| Stockport Branch | Stockport, IA | 52651 | $6.2M |
Source: FDIC Summary of Deposits, June 30, 2026. How the survey works.
Regulator records: FDIC BankFind (cert 5820) · FFIEC NIC profile (RSSD 808345)