FDIC-insured bank
Great Midwest Bank, S.S.B. — Brookfield, WI
Bank headquartered in Brookfield, Wisconsin.
Source: FDIC BankFind Suite, data as of June 30, 2026, fetched September 5, 2026
Headquarters and contact
| Address | 15900 W Bluemound Rd Brookfield, WI 53005 |
| County | Waukesha |
| Metro area | Milwaukee-Waukesha, WI |
| Website | www.greatmidwestbank.com |
| Phone | not published in FDIC data, see the bank's website |
FDIC record
| FDIC Certificate | 29657 |
| Federal Reserve RSSD ID | 524579 |
| Status | Active |
| Charter class | SI (STATE) |
| Ownership | Mutual |
| Domestic offices | 8 |
| Financials as of | June 30, 2026 |
How to find your Great Midwest Bank, S.S.B. 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.greatmidwestbank.com.
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Offices nearest to headquarters
| Great Midwest Bank, S.S.B. main office Brookfield, WI |
15900 W Bluemound Rd, 53005 |
| 10269 West National Ave Branch West Allis, WI |
10269 W National Ave, 53227 |
| 5150 South 76Th Street Branch Greendale, WI |
5150 S 76th St, 53129 |
| 4775 South 27Th Street Branch Greenfield, WI |
4775 S 27th St, 53221 |
| 600 Hartbrook Dr Branch Hartland, WI |
600 Hartbrook Dr, 53029 |
| 505 West Brown Deer Road Branch Bayside, WI |
505 W Brown Deer Rd, 53217 |
| 1050 East Chestnut Street Chilton, WI |
1050 E Chestnut St, 53014 |
| Madison Office Branch Middleton, WI |
1003 N Gammon Rd, 53562 |
Where Great Midwest Bank, S.S.B. has offices
Cities with the most Great Midwest Bank, S.S.B. offices
Other banks headquartered in Brookfield
| North Shore Bank | $2.61 billion |
| Spring Bank | $440.73 million |
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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