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Bank Five Nine Locations & Branches Oconomowoc, Wisconsin
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Bank Five Nine operates 15 branches from its headquarters in Oconomowoc, WI, .
Bank Five Nine branch network
All 15 branches are in WISCONSIN, across 11 cities. Oconomowoc, WI has the most of its branches, 4. Its largest office by deposits is its main office in Oconomowoc, WI, with $775.9M (37.0% of its branch deposits). It had the same number of branches on June 30, 2025.
Bank Five Nine at a glance
Its CET1 capital ratio was 12.13% at Q2 2026, above regulatory requirements.
- Total assets, Q2 2026
- $2.53B
- CET1 ratio, Q2 2026
- 12.13%
- Deposit insurance
- FDIC
- Regulator
- FDIC
- Established
- 1859
Full financial profile · Is Bank Five Nine 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: Oconomowoc, WI (4 branches) | 1 of 8 | 56.6% | $1.04B |
| State: WI (15 branches) | 15 of 185 | 1.0% | $2.10B |
Ranked by total assets among banks headquartered in the state: Largest banks in Wisconsin.
Share by county and metro area
Bank Five Nine'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 |
|---|---|---|---|---|
| Waukesha, WI (8 branches) | 6 of 34 | 7.9% | $1.50B | $18.94B |
| Washington, WI (3 branches) | 4 of 13 | 10.8% | $402.5M | $3.73B |
| Ozaukee, WI (2 branches) | 7 of 15 | 4.9% | $165.1M | $3.40B |
| Milwaukee, WI (2 branches) | 24 of 27 | <0.1% | $35.0M | $53.86B |
Metro areas
| Metro area | Rank | Deposit share | Deposits | Metro total |
|---|---|---|---|---|
| Milwaukee-Waukesha, WI (15 branches) | 6 of 43 | 2.6% | $2.10B | $79.93B |
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| Bank Five Nine (main office) | Oconomowoc, WI | 53066 | $775.9M |
| Germantown Branch | Germantown, WI | 53022 | $169.6M |
| Brookfield Branch | Brookfield, WI | 53045 | $166.8M |
| Hartland Branch | Hartland, WI | 53029 | $157.3M |
| Brown Street Branch | Oconomowoc, WI | 53066 | $141.3M |
| West Bend Branch | West Bend, WI | 53095 | $138.5M |
| Summit Avenue Branch | Oconomowoc, WI | 53066 | $120.5M |
| Mequon Branch | Mequon, WI | 53092 | $107.0M |
| Hartford Branch | Hartford, WI | 53027 | $94.4M |
| East Brookfield | Brookfield, WI | 53005 | $84.1M |
| Grafton Wi Branch | Grafton, WI | 53024 | $58.2M |
| Menomonee Falls Branch | Menomonee Falls, WI | 53051 | $50.2M |
| Glendale Branch | Glendale, WI | 53217 | $33.5M |
| Milwaukee Branch | Milwaukee, WI | 53202 | $1.5M |
| Shorehaven Branch | Oconomowoc, WI | 53066 | $0 |
Source: FDIC Summary of Deposits, June 30, 2026. How the survey works.
Regulator records: FDIC BankFind (cert 12517) · FFIEC NIC profile (RSSD 806846)