Branch Network
Osb Community Bank Locations & Branches Ottawa, Illinois
BankRegReports is independent of Osb Community Bank and never asks for online banking logins or passwords.
Osb Community Bank operates 3 branches from its headquarters in Ottawa, IL, .
Osb Community Bank branch network
All 3 branches are in ILLINOIS, across 3 cities. Its largest office by deposits is its main office in Ottawa, IL, with $151.2M (51.5% of its branch deposits). It had the same number of branches on June 30, 2025.
Osb Community Bank at a glance
Its CET1 capital ratio was 15.79% at Q2 2026, comfortably above the 7% level required once the capital conservation buffer is included.
- Total assets, Q2 2026
- $355.6M
- CET1 ratio, Q2 2026
- 15.79%
- Deposit insurance
- FDIC
- Regulator
- FDIC
- Latest call report
- Q2 2026, FFIEC 051
- Established
- 1871
Full financial profile · Is Osb Community Bank safe? · Osb Community 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: Ottawa, IL (1 branch) | 2 of 6 | 9.6% | $151.2M |
| State: IL (3 branches) | 165 of 379 | <0.1% | $293.5M |
Ranked by total assets among banks headquartered in the state: Largest banks in Illinois.
Share by county and metro area
Osb Community 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 |
|---|---|---|---|---|
| Lasalle, IL (2 branches) | 5 of 22 | 5.7% | $234.8M | $4.10B |
| Grundy, IL (1 branch) | 7 of 12 | 3.4% | $58.6M | $1.70B |
Metro areas
| Metro area | Rank | Deposit share | Deposits | Metro total |
|---|---|---|---|---|
| Ottawa, IL (2 branches) | 7 of 26 | 4.2% | $234.8M | $5.55B |
| Chicago-Naperville-Elgin, IL-IN-WI (1 branch) | 130 of 150 | <0.1% | $58.6M | $632.03B |
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| Osb Community Bank (main office) | Ottawa, IL | 61350 | $151.2M |
| Osb Community Bank Branch | Marseilles, IL | 61341 | $83.6M |
| Osb Community Bank Branch | Morris, IL | 60450 | $58.6M |
Source: FDIC Summary of Deposits, June 30, 2026. How the survey works.
Regulator records: FDIC BankFind (cert 27989) · FFIEC NIC profile (RSSD 725077)