Branch Network
Alton Bank Locations & Branches Alton, Missouri
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Alton Bank operates 2 branches from its headquarters in Alton, MO, .
Alton Bank branch network
Both branches are in MISSOURI, across 2 cities. Its largest office by deposits is its main office in Alton, MO, with $77.1M (60.3% of its branch deposits). It had the same number of branches on June 30, 2025.
Alton Bank at a glance
Its CET1 capital ratio was 9.77% at Q2 2026, above the 7% level required once the capital conservation buffer is included.
- Total assets, Q2 2026
- $145.0M
- CET1 ratio, Q2 2026
- 9.77%
- Deposit insurance
- FDIC
- Regulator
- FDIC
- Established
- 1924
Full financial profile · Is Alton Bank safe? · 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: Alton, MO (1 branch) | 1 of 2 | 66.8% | $77.1M |
| State: MO (2 branches) | 174 of 249 | <0.1% | $127.9M |
Ranked by total assets among banks headquartered in the state: Largest banks in Missouri.
Share by county and metro area
Alton 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 |
|---|---|---|---|---|
| Oregon, MO (1 branch) | 2 of 3 | 35.0% | $77.1M | $220.4M |
| Shannon, MO (1 branch) | 2 of 2 | 39.3% | $50.8M | $129.0M |
Metro area share: not on file. None of this bank's branches sit in a metropolitan or micropolitan area in the FDIC branch directory.
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| Alton Bank (main office) | Alton, MO | 65606 | $77.1M |
| Birch Tree Branch | Birch Tree, MO | 65438 | $50.8M |
Source: FDIC Summary of Deposits, June 30, 2026. How the survey works.
Regulator records: FDIC BankFind (cert 8276) · FFIEC NIC profile (RSSD 881441)