Marathon Bank
Wausau, WI · Insured depository institution
Sonar Score
Stable
out of 100 · from public FDIC data
Reported June 30, 2026. The Sonar Score is an informational signal from public FDIC data — not a rating or financial advice.
Key figures
- Total assets
- $261.1M
- Total deposits
- $197.8M
- Branches
- 5
- Return on assets
- 0.78%
- Return on equity
- 5.24%
- Charter type
- Insured depository institution
- Established
- 1902
- FDIC cert #
- 29745
How the 69 breaks down
Well-capitalized by regulatory thresholds.
Modest but positive returns.
Positive but moderate equity returns.
Community-scale institution.
Your deposits at Marathon Bank
Marathon Bank is an FDIC-insured institution (Cert #29745). Deposits are insured up to $250,000 per depositor, per ownership category, by the full faith and credit of the US government. Learn how to maximize your coverage →
5 branch locations
307 3rd St
Mosinee, WI 54455
1133 E Grand Ave
Rothschild, WI 54474
500 Scott St
Wausau, WI 54403
11315 N Cedarburg Rd
Mequon, WI 53092
19105 W Capitol Drive
Brookfield, WI 53045
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