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The Bank of Old Monroe Locations & Branches Old Monroe, Missouri
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The Bank of Old Monroe operates 5 branches from its headquarters in Old Monroe, MO, .
The Bank of Old Monroe branch network
All 5 branches are in MISSOURI, across 5 cities. Its largest office by deposits is the The Bank of Old Monroe office in Old Monroe, MO, with $475.7M (51.9% of its branch deposits). It had the same number of branches on June 30, 2025.
The Bank of Old Monroe at a glance
It reports no CET1 ratio; its Tier 1 leverage ratio was 10.55% at Q2 2026, above the 9% community bank leverage ratio requirement for being considered well capitalized.
- Total assets, Q2 2026
- $994.6M
- Tier 1 leverage ratio, Q2 2026
- 10.55%
- Deposit insurance
- FDIC
- Regulator
- FDIC
- Latest call report
- Q2 2026, FFIEC 051
- Established
- 1906
Full financial profile · Is The Bank of Old Monroe safe? · The Bank of Old Monroe 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: Old Monroe, MO (1 branch) | 1 of 1 | 100.0% | $475.7M |
| State: MO (5 branches) | 47 of 249 | 0.3% | $916.6M |
Ranked by total assets among banks headquartered in the state: Largest banks in Missouri.
Share by county and metro area
The Bank of Old Monroe'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 |
|---|---|---|---|---|
| Lincoln, MO (3 branches) | 1 of 8 | 41.0% | $699.5M | $1.70B |
| St. Charles, MO (2 branches) | 12 of 35 | 2.2% | $217.1M | $9.96B |
Metro areas
| Metro area | Rank | Deposit share | Deposits | Metro total |
|---|---|---|---|---|
| St. Louis, MO-IL (5 branches) | 26 of 111 | 0.6% | $916.6M | $141.72B |
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| The Bank of Old Monroe | Old Monroe, MO | 63369 | $475.7M |
| Bank of Old Monroe - Wentzville Facility | Wentzville, MO | 63385 | $129.5M |
| Bank of Old Monroe-Moscow Mills Branch | Moscow Mills, MO | 63362 | $122.8M |
| Troy Branch | Troy, MO | 63379 | $101.1M |
| O'Fallon Branch | O Fallon, MO | 63366 | $87.6M |
Source: FDIC Summary of Deposits, June 30, 2026. How the survey works.
Regulator records: FDIC BankFind (cert 1655) · FFIEC NIC profile (RSSD 880855)