FDIC-insured bank

WaterStone Bank, SSB — Wauwatosa, WI

Bank headquartered in Wauwatosa, Wisconsin, part of WATERSTONE FINANCIAL INC.
Source: FDIC BankFind Suite, data as of June 30, 2026, fetched September 5, 2026
Total assets
$2.25 billion
Total deposits
$1.47 billion
Branches
16
FDIC-insured since
1989
Established
1921

Headquarters and contact

Address11200 W Plank Ct
Wauwatosa, WI 53226
CountyMilwaukee
Metro areaMilwaukee-Waukesha, WI
Websitewww.wsbonline.com
Phonenot published in FDIC data, see the bank's website

FDIC record

FDIC Certificate28513
Federal Reserve RSSD ID310978
StatusActive
Charter classSI (STATE)
Holding companyWATERSTONE FINANCIAL INC
Domestic offices16
Financials as ofJune 30, 2026

How to find your WaterStone Bank, SSB routing number

FDIC does not publish ABA routing numbers, and many banks use different routing numbers by state or by account type. The reliable places to find yours: the bottom left of a check from this bank, the "account details" screen in its online banking, or its official website at www.wsbonline.com.
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Offices nearest to headquarters

Waterstone Bank, Ssb main office
Wauwatosa, WI
11200 W Plank Ct, 53226
West Allis Branch
West Allis, WI
10101 W Greenfield Ave, 53214
Wauwatosa State Street Office
Wauwatosa, WI
7500 W State St, 53213
State Street Drive Up Facility Branch
Wauwatosa, WI
7136 W State St, 53213
National
West Allis, WI
10296 W National Ave, 53227
Oklahoma Branch
Milwaukee, WI
6801 W Oklahoma Ave, 53219
Brookfield Wi Branch
Brookfield, WI
17495 W Capitol Dr, 53045
Greenfield Branch
Greenfield, WI
5000 W Loomis Rd, 53220
Franklin Branch
Franklin, WI
6555 S 108th St, 53132
Waukesha Branch
Brookfield, WI
21505 Us-18 E, 53045
Oak Creek Branch
Oak Creek, WI
6560 S 27th St, 53154
Germantown Branch
Germantown, WI
W188n9820 Appleton Ave, 53022
16 offices in total. Browse them by city through the state pages.

Where WaterStone Bank, SSB has offices

Cities with the most WaterStone Bank, SSB offices

Other banks headquartered in Wauwatosa

Largest banks headquartered elsewhere in Wisconsin

Associated Bank, National Association Green Bay$51.76 billion
Nicolet National Bank Green Bay$15.39 billion
Johnson Bank Racine$7.07 billion
Bank First, N.A. Manitowoc$5.94 billion
John Deere Financial, f.s.b. Middleton$4.93 billion
Town Bank, National Association Hartland$4.71 billion
First Business Bank Madison$4.41 billion
Lake Ridge Bank Middleton$3.35 billion
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