Branch Network
Bank of Ontario Locations & Branches Ontario, Wisconsin
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Bank of Ontario operates 3 branches from its headquarters in Ontario, WI, .
Bank of Ontario branch network
All 3 branches are in WISCONSIN, across 3 cities. Its largest office by deposits is its main office in Ontario, WI, with $40.5M (60.0% of its branch deposits). It had the same number of branches on June 30, 2025.
Bank of Ontario at a glance
It reports no CET1 ratio; its Tier 1 leverage ratio was 11.07% at Q2 2026, above the 9% community bank leverage ratio requirement for being considered well capitalized.
- Total assets, Q2 2026
- $76.5M
- Tier 1 leverage ratio, Q2 2026
- 11.07%
- Deposit insurance
- FDIC
- Regulator
- FDIC
- Latest call report
- Q2 2026, FFIEC 051
- Established
- 1911
Full financial profile · Is Bank of Ontario safe? · Bank of Ontario 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: Ontario, WI (1 branch) | 1 of 1 | 100.0% | $40.5M |
| State: WI (3 branches) | 169 of 185 | <0.1% | $67.4M |
Ranked by total assets among banks headquartered in the state: Largest banks in Wisconsin.
Share by county and metro area
Bank of Ontario'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 |
|---|---|---|---|---|
| Vernon, WI (3 branches) | 5 of 7 | 9.7% | $67.4M | $692.0M |
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 |
|---|---|---|---|
| Bank of Ontario (main office) | Ontario, WI | 54651 | $40.5M |
| Genoa Branch | Genoa, WI | 54632 | $21.3M |
| Westby Branch | Westby, WI | 54667 | $5.6M |
Source: FDIC Summary of Deposits, June 30, 2026. How the survey works.
Regulator records: FDIC BankFind (cert 21085) · FFIEC NIC profile (RSSD 37341)