Banks in Marathon County, Wisconsin
44 active bank branches operated by 17 institutions, per FDIC records.
Active branches
44
Banks present
17
Deposits (2026)
$5.4B
Closings since 2020
15
3 openings
Largest banks by deposits in Marathon County (2026)
| Bank | Deposits | Share | Branches |
|---|---|---|---|
| BMO Bank | $1.5B | 28.8% | 4 |
| Peoples State Bank | $792M | 14.8% | 5 |
| IncredibleBank | $646M | 12.1% | 5 |
| Associated Bank | $604M | 11.3% | 2 |
| AbbyBank | $369M | 6.9% | 4 |
| Nicolet National Bank | $359M | 6.7% | 3 |
| U.S. Bank | $213M | 4% | 3 |
| One Community Bank | $212M | 4% | 3 |
| Partners Bank of Wisconsin | $167M | 3.1% | 2 |
| Marathon Bank | $163M | 3% | 3 |
Deposit location reflects the office to which deposits are reported and may not represent the residence of depositors.
Cities and towns
Transcribed from FDIC BankFind Suite active-location records and the annual Summary of Deposits. County assignment follows the FDIC branch record.