Branch Network
Bank of Lake Mills Locations & Branches Lake Mills, Wisconsin
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Bank of Lake Mills operates 2 branches from its headquarters in Lake Mills, WI, .
Bank of Lake Mills branch network
Both branches are in WISCONSIN, across 2 cities. Its largest office by deposits is its main office in Lake Mills, WI, with $339.3M (78.5% of its branch deposits). It had the same number of branches on June 30, 2025.
Bank of Lake Mills at a glance
Its CET1 capital ratio was 12.81% at Q2 2026, above regulatory requirements.
- Total assets, Q2 2026
- $533.8M
- CET1 ratio, Q2 2026
- 12.81%
- Deposit insurance
- FDIC
- Regulator
- FDIC
- Latest call report
- Q2 2026, FFIEC 041
- Established
- 1893
Full financial profile · Is Bank of Lake Mills safe? · Bank of Lake Mills call report · 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: Lake Mills, WI (1 branch) | 2 of 3 | 48.4% | $339.3M |
| State: WI (2 branches) | 71 of 185 | 0.2% | $432.3M |
Ranked by total assets among banks headquartered in the state: Largest banks in Wisconsin.
Share by county and metro area
Bank of Lake Mills'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 |
|---|---|---|---|---|
| Jefferson, WI (2 branches) | 2 of 11 | 18.4% | $432.3M | $2.34B |
Metro areas
| Metro area | Rank | Deposit share | Deposits | Metro total |
|---|---|---|---|---|
| Watertown-Fort Atkinson, WI (2 branches) | 2 of 11 | 18.4% | $432.3M | $2.34B |
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| Bank of Lake Mills (main office) | Lake Mills, WI | 53551 | $339.3M |
| Watertown Branch | Watertown, WI | 53094 | $93.0M |
Source: FDIC Summary of Deposits, June 30, 2026. How the survey works.
Regulator records: FDIC BankFind (cert 8695) · FFIEC NIC profile (RSSD 477349)