Great Midwest Bank, S.S.B.
Brookfield, WI
IDRSSD: 524579
Total Assets
$1.03B
Latest filing
Total Deposits
$609.21M
Latest filing
Net Interest Margin
2.81%
Profitability
Routing numbers
Primary routing transit numbers associated with this institution.
1 routeView all→
275971906BROOKFIELD, WI
Key People
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Locations
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Main Office
Great Midwest Bank, S.S.B.
15900 W Bluemound Rd
Brookfield, WI 53005
Full Service - Brick and Mortar
Updated 01/30/2026Established 03/25/1936FDIC Certificate 42491
Branches (7)
Page 1 of 1| Name | Address | City / State |
|---|---|---|
| Great Midwest Bank, S.S.B. (Main) | 15900 W Bluemound Rd | Brookfield, WI |
| 4775 SOUTH 27TH STREET BRANCH | 4775 S 27th St | Greenfield, WI |
| 1050 EAST CHESTNUT STREET | 1050 E Chestnut St | Chilton, WI |
| 600 HARTBROOK DR BRANCH | 600 Hartbrook Dr | Hartland, WI |
| 505 WEST BROWN DEER ROAD BRANCH | 505 W Brown Deer Rd | Bayside, WI |
| 5150 SOUTH 76TH STREET BRANCH | 5150 S 76th St | Greendale, WI |
| 10269 WEST NATIONAL AVE BRANCH | 10269 W National Ave | West Allis, WI |
| 6702 ODANA ROAD BRANCH | 6702 Odana Rd | Madison, WI |
Showing 7 of 7
Quarterly Trends
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Total Assets vs Total Liabilities
Loans & Leases vs Deposits
Interest Income vs Expense
Net Interest Income
Noninterest Expense vs Income
Net Income
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Institution Profile
| Institution Class | State chartered stock savings banks / S&L |
| Primary Regulator | FDIC |
| Established Date | 03/25/1936 |
| Community Bank | Yes |
| Ownership Type | Mutual |
| ZIP | 53005 |
| State and County Number | 55133 |
| Subchapter S Corporations | No |
| Trust Powers | N/A |
| Federal Reserve ID Number | 07 |
| Numeric code | 42 |
| Insured by FDIC | Institutions that are currently open and insured by the FDIC |
| Federal Reserve District | Chicago |
| Core Based Statistical Area Name | Milwaukee-Waukesha, WI |
Operational Info
| Number of Employees | 84 |
| Domestic Offices | 8 |
| Foreign Offices | 0 |
| US Offices | 0 |
| Directly owned by another bank (CERT) | No |
| Last Structure Change Effective Date | 08/31/2022 |
| Date of Deposit Insurance | 08/09/1989 |
| Primary Insurance Agency | DIF |
| Website | www.greatmidwestbank.com |
| Data Updated | 01/30/2026 |
| CERT | 29657 |
| Office of The Comptroller District: | — |
| Office of Thrift Supervision Region | N/A |
Financial Summary
| Total Assets | $1.03B |
| Total Deposits | $609.21M |
| Total Liabilities | $869.23M |
| Total Equity Capital | $165.68M |
| Net Income | $1.93M |
| Net Loans and Leases | $919.20M |
| Assets Per Employee ($Millions) | $12.32M |
| Bank Premises and Fixed Assets | $3.58M |
| Cash and Balances due from Depository Institutions | $6.70M |
| Deposits Held in Domestic Offices | $609.21M |
Key Performance Ratios
| Return on Assets (ROA) | 0.76% |
| Return on Equity (ROE) | 4.69% |
| Net Interest Margin | 2.81% |
| Efficiency Ratio | 65.85% |
| Tier 1 Risk-Based Capital Ratio | 0% |
| Net Loans and Leases to Core Deposits | 0% |
| Credit Loss Provision to Assets | 0% |
| Cash Dividends to Net Income (YTD Only) | 0% |
| Equity Capital to Assets | 16.009% |
| Earning Assets to total Assets | 95.06% |
Income and Expense
| Total Interest Income | $13.95M |
| Total Noninterest Income | $781.00k |
| Total Interest Expense | $7.14M |
| Total Noninterest Expense | $5.00M |
| Net Interest Income | $6.81M |
| Pre-tax Net Operating Income | $2.59M |
| Provision for Credit Losses | $0 |
| Discontinued Operations (Extraordinary Gains - Net) | $0 |
Additional Financial Info
| Goodwill and Other Intangibles | $0 |
| All Other Assets | — |
| Other Real Estate Owned | $0 |
| Other borrowed funds | $252.64M |
| Federal Funds Sold & Reverse Repurchase Agreement | $0 |
| Federal Funds Purchased and Repurchased Agreement | $0 |
| All Other Liabilities | $7.37M |
| Total Liabilities and Capital | $1.03B |
Securities
| Securities | $61.72M |
| Available-for-sale debt securities | $58.35M |
| Equity securities with readily determinable fair values not held for trading | — |
| Held-to-maturity securities | $0 |
| Subordinated Debt | $0 |
| Trading Account Assets | $0 |
| Trading Liabilities | $0 |
Frequently Asked Questions
What are the total assets of Great Midwest Bank, S.S.B.?
$1.03B as of the latest filing.
How much are Great Midwest Bank, S.S.B.'s total deposits?
$609.21M in total deposits.
Where is Great Midwest Bank, S.S.B. located?
Brookfield, WI.
What is the Net Interest Margin?
2.81%.
How many domestic offices does it operate?
8.
When was it established?
03/25/1936.
What is the Return on Assets (ROA)?
0.76%.
How much are total loans and leases?
$919.20M (latest filing).
What is the total interest income (latest filing)?
$13.95M.