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Waterstone Bank Locations & Branches Wauwatosa, Wisconsin
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Waterstone Bank operates 16 branches from its headquarters in Wauwatosa, WI, .
Waterstone Bank branch network
All 16 branches are in WISCONSIN, across 11 cities. Wauwatosa, WI has the most of its branches, 3. Its largest office by deposits is the Wauwatosa State Street Office office in Wauwatosa, WI, with $295.9M (20.1% of its branch deposits). It had the same number of branches on June 30, 2025.
Waterstone Bank at a glance
Its CET1 capital ratio was 18.66% at Q2 2026, comfortably above the 7% level required once the capital conservation buffer is included.
- Total assets, Q2 2026
- $2.25B
- CET1 ratio, Q2 2026
- 18.66%
- Deposit insurance
- FDIC
- Regulator
- FDIC
- Established
- 1921
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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: Wauwatosa, WI (3 branches) | 2 of 13 | 17.2% | $295.9M |
| State: WI (16 branches) | 20 of 185 | 0.7% | $1.47B |
Ranked by total assets among banks headquartered in the state: Largest banks in Wisconsin.
Share by county and metro area
Waterstone 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 |
|---|---|---|---|---|
| Milwaukee, WI (11 branches) | 9 of 27 | 1.8% | $949.5M | $53.86B |
| Waukesha, WI (4 branches) | 13 of 34 | 2.1% | $397.4M | $18.94B |
| Washington, WI (1 branch) | 10 of 13 | 3.3% | $122.9M | $3.73B |
Metro areas
| Metro area | Rank | Deposit share | Deposits | Metro total |
|---|---|---|---|---|
| Milwaukee-Waukesha, WI (16 branches) | 9 of 43 | 1.8% | $1.47B | $79.93B |
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| Wauwatosa State Street Office | Wauwatosa, WI | 53213 | $295.9M |
| Oak Creek Branch | Oak Creek, WI | 53154 | $206.0M |
| Waukesha Branch | Brookfield, WI | 53045 | $177.6M |
| Franklin Branch | Franklin, WI | 53132 | $133.3M |
| Germantown Branch | Germantown, WI | 53022 | $122.9M |
| George Towne Drive Branch | Pewaukee, WI | 53072 | $93.2M |
| Greenfield Branch | Greenfield, WI | 53220 | $81.5M |
| Brookfield Wi Branch | Brookfield, WI | 53045 | $71.4M |
| Fox Point Branch | Fox Point, WI | 53217 | $60.9M |
| West Allis Branch | West Allis, WI | 53214 | $60.7M |
| Oconomowoc Branch | Oconomowoc, WI | 53066 | $55.3M |
| Howell | Oak Creek, WI | 53154 | $54.7M |
| National | West Allis, WI | 53227 | $34.7M |
| Oklahoma Branch | Milwaukee, WI | 53219 | $21.9M |
| State Street Drive Up Facility Branch | Wauwatosa, WI | 53213 | $0 |
| Waterstone Bank, Ssb | Wauwatosa, WI | 53226 | $0 |
Source: FDIC Summary of Deposits, June 30, 2026. How the survey works.
Regulator records: FDIC BankFind (cert 28513) · FFIEC NIC profile (RSSD 310978)