| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | The Bank of New Glarus | Bank | 5 | $420.6M | 25.66% |
| 2 | Woodford State Bank | Bank | 2 | $265.4M | 16.19% |
| 3 | The Bank of Brodhead | Bank | 2 | $238.3M | 14.54% |
| 4 | UMB Bank, National Association | Bank | 1 | $219.3M | 13.38% |
| 5 | Bank First, N.A. | Bank | 1 | $142.9M | 8.72% |
| 6 | Summit Credit Union | Credit union | 1 | $120.2M* | 7.33% |
| 7 | Bank Cmg | Bank | 3 | $105.4M | 6.43% |
| 8 | Marine Credit Union | Credit union | 1 | $47.0M* | 2.87% |
| 9 | Lake Ridge Bank | Bank | 1 | $41.4M | 2.53% |
| 10 | First Community CU Of Beloit Credit Union | Credit union | 1 | $38.7M* | 2.36% |
* Credit-union deposits are estimated (June total shares spread evenly across branches).
| Year | Deposits | Institutions | Branches | Leader | Top share | HHI |
|---|---|---|---|---|---|---|
| 2026 | $1.64B | 10 | 18 | The Bank of New Glarus | 25.7% | 1,502 |
| 2025 | $1.46B | 10 | 19 | The Bank of New Glarus | 25.9% | 1,498 |
| 2024 | $1.39B | 10 | 18 | The Bank of New Glarus | 26.8% | 1,490 |
| 2023 | $1.38B | 10 | 19 | The Bank of New Glarus | 24.6% | 1,375 |
| 2022 | $1.46B | 10 | 19 | The Bank of New Glarus | 20.3% | 1,301 |
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