Branch Network
Carrollton Bank Locations & Branches Carrollton, Illinois
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Carrollton Bank operates 13 branches from its headquarters in Carrollton, IL, .
Carrollton Bank branch network
Its 13 branches span 2 states and 12 cities. The most are in ILLINOIS (7) and MISSOURI (6). MISSOURI holds 51.3% of its branch deposits. Saint Louis, MO has the most of its branches, 2. Its largest office by deposits is the O'Fallon Branch office in O Fallon, IL, with $459.1M (12.9% of its branch deposits). It had the same number of branches on June 30, 2025.
Carrollton Bank at a glance
Its CET1 capital ratio was 9.93% at Q2 2026, above the 7% level required once the capital conservation buffer is included.
- Total assets, Q2 2026
- $3.88B
- CET1 ratio, Q2 2026
- 9.93%
- Deposit insurance
- FDIC
- Regulator
- FDIC
- Latest call report
- Q2 2026, FFIEC 041
- Established
- 1877
Full financial profile · Is Carrollton Bank safe? · Carrollton 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: Carrollton, IL (1 branch) | 1 of 2 | 79.2% | $221.4M |
| State: IL (7 branches) | 51 of 379 | 0.2% | $1.73B |
| Largest deposit state: MO (6 branches) | 27 of 249 | 0.7% | $1.82B |
Ranked by total assets among banks headquartered in the state: Largest banks in Illinois.
Share by county and metro area
Carrollton 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 |
|---|---|---|---|---|
| St. Louis, MO (3 branches) | 18 of 55 | 1.6% | $795.5M | $48.49B |
| St. Clair, IL (1 branch) | 4 of 26 | 7.7% | $459.1M | $5.95B |
| St. Louis City, MO (1 branch) | 8 of 26 | 0.8% | $454.3M | $54.95B |
| Madison, IL (3 branches) | 6 of 23 | 5.9% | $393.9M | $6.71B |
| St. Charles, MO (1 branch) | 7 of 35 | 3.8% | $378.5M | $9.96B |
| Sangamon, IL (1 branch) | 9 of 24 | 3.8% | $354.1M | $9.40B |
| Jersey, IL (1 branch) | 1 of 6 | 46.9% | $304.3M | $649.5M |
| Greene, IL (1 branch) | 1 of 5 | 51.6% | $221.4M | $428.7M |
| Jefferson, MO (1 branch) | 7 of 24 | 5.0% | $196.0M | $3.89B |
Metro areas
| Metro area | Rank | Deposit share | Deposits | Metro total |
|---|---|---|---|---|
| St. Louis, MO-IL (11 branches) | 9 of 111 | 2.1% | $2.98B | $141.72B |
| Springfield, IL (1 branch) | 9 of 26 | 3.6% | $354.1M | $9.76B |
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| O'Fallon Branch | O Fallon, IL | 62269 | $459.1M |
| Saint Louis Hills Branch | Saint Louis, MO | 63109 | $454.3M |
| Des Peres Branch | Des Peres, MO | 63131 | $444.3M |
| Saint Charles Branch | Saint Charles, MO | 63301 | $378.5M |
| Springfield Branch | Springfield, IL | 62704 | $354.1M |
| Clayton Mo Branch | Clayton, MO | 63105 | $351.2M |
| Jerseyville Banking Center | Jerseyville, IL | 62052 | $304.3M |
| Alton Branch | Alton, IL | 62002 | $250.3M |
| Carrollton Bank (main office) | Carrollton, IL | 62016 | $221.4M |
| Carrollton Bank - Arnold Branch | Arnold, MO | 63010 | $196.0M |
| Carrollton Bank - Edwardsville Office | Edwardsville, IL | 62025 | $143.7M |
| Godfrey Branch | Godfrey, IL | 62035 | $0 |
| Creve Coeur Home Loan Center | Saint Louis, MO | 63146 | $0 |
Source: FDIC Summary of Deposits, June 30, 2026. How the survey works.
Regulator records: FDIC BankFind (cert 12383) · FFIEC NIC profile (RSSD 1001648)