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Great Midwest Bank, State Savings Bank Locations & Branches Brookfield, Wisconsin
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Great Midwest Bank, State Savings Bank operates 8 branches from its headquarters in Brookfield, WI, .
Great Midwest Bank, State Savings Bank branch network
All 8 branches are in WISCONSIN, across 8 cities. Its largest office by deposits is the Great Midwest Bank, S.S.B. office in Brookfield, WI, with $337.6M (54.4% of its branch deposits). It had the same number of branches on June 30, 2025.
Great Midwest Bank, State Savings Bank at a glance
It reports no CET1 ratio; its Tier 1 leverage ratio was 16.50% at Q2 2026, above the 9% community bank leverage ratio requirement for being considered well capitalized.
- Total assets, Q2 2026
- $1.06B
- Tier 1 leverage ratio, Q2 2026
- 16.50%
- Deposit insurance
- FDIC
- Regulator
- FDIC
- Latest call report
- Q2 2026, FFIEC 051
- Established
- 1936
Full financial profile · Is Great Midwest Bank, State Savings Bank safe? · Great Midwest Bank, State Savings Bank Q3 2026 call report, filed October 9, 2026 (preliminary) · 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: Brookfield, WI (1 branch) | 5 of 21 | 6.8% | $337.6M |
| State: WI (8 branches) | 51 of 185 | 0.3% | $620.8M |
Ranked by total assets among banks headquartered in the state: Largest banks in Wisconsin.
Share by county and metro area
Great Midwest Bank, State Savings 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 |
|---|---|---|---|---|
| Waukesha, WI (2 branches) | 14 of 34 | 2.0% | $383.5M | $18.94B |
| Milwaukee, WI (4 branches) | 17 of 27 | 0.3% | $175.8M | $53.86B |
| Calumet, WI (1 branch) | 5 of 8 | 4.6% | $38.0M | $834.3M |
| Dane, WI (1 branch) | 32 of 33 | <0.1% | $23.6M | $26.10B |
Metro areas
| Metro area | Rank | Deposit share | Deposits | Metro total |
|---|---|---|---|---|
| Milwaukee-Waukesha, WI (6 branches) | 19 of 43 | 0.7% | $559.2M | $79.93B |
| Appleton, WI (1 branch) | 16 of 22 | 0.8% | $38.0M | $5.02B |
| Madison, WI (1 branch) | 40 of 41 | <0.1% | $23.6M | $30.15B |
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| Great Midwest Bank, S.S.B. | Brookfield, WI | 53005 | $337.6M |
| 5150 South 76th Street Branch | Greendale, WI | 53129 | $63.9M |
| 4775 South 27th Street Branch | Greenfield, WI | 53221 | $56.2M |
| 600 Hartbrook Dr Branch | Hartland, WI | 53029 | $45.9M |
| 1050 East Chestnut Street | Chilton, WI | 53014 | $38.0M |
| 10269 West National Ave Branch | West Allis, WI | 53227 | $36.7M |
| Madison Office Branch | Middleton, WI | 53562 | $23.6M |
| 505 West Brown Deer Road Branch | Bayside, WI | 53217 | $19.0M |
Source: FDIC Summary of Deposits, June 30, 2026. How the survey works.
Regulator records: FDIC BankFind (cert 29657) · FFIEC NIC profile (RSSD 524579)