Bank of Lake Mills
Lake Mills, WI
IDRSSD: 477349
Total Assets
$516.50M
Latest filing
Total Deposits
$440.94M
Latest filing
Net Interest Margin
5.38%
Profitability
Locations
Main office and branches. Select to view on the map.
Main Office
Bank of Lake Mills
136 E Madison St
Lake Mills, WI 53551
Full Service - Brick and Mortar
Updated 11/14/2025Established 01/01/1893FDIC Certificate 5536
Branches (1)
Page 1 of 1| Name | Address | City / State |
|---|---|---|
| Bank of Lake Mills (Main) | 136 E Madison St | Lake Mills, WI |
| WATERTOWN BRANCH | 400 Bernard St | Watertown, WI |
Showing 1 of 1
Quarterly Trends
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Total Assets vs Total Liabilities
Loans & Leases vs Deposits
Interest Income vs Expense
Net Interest Income
Noninterest Expense vs Income
Net Income
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Institution Profile
| Institution Class | Commercial bank, state charter, Fed non-member, and supervised by the FDIC |
| Primary Regulator | FDIC |
| Established Date | 01/01/1893 |
| Community Bank | Yes |
| Ownership Type | Not Mutual |
| ZIP | 53551 |
| State and County Number | 55055 |
| Subchapter S Corporations | Yes |
| Trust Powers | N/A |
| Federal Reserve ID Number | 07 |
| Numeric code | 21 |
| Insured by FDIC | Institutions that are currently open and insured by the FDIC |
| Federal Reserve District | Chicago |
| Core Based Statistical Area Name | Watertown-Fort Atkinson, WI |
Operational Info
| Number of Employees | 39 |
| Domestic Offices | 2 |
| Foreign Offices | 0 |
| US Offices | 0 |
| Directly owned by another bank (CERT) | No |
| Last Structure Change Effective Date | 08/31/2022 |
| Date of Deposit Insurance | 01/02/1934 |
| Primary Insurance Agency | DIF |
| Website | www.bankoflakemills.com |
| Data Updated | 11/14/2025 |
| CERT | 8695 |
| Office of The Comptroller District: | — |
| Office of Thrift Supervision Region | N/A |
Financial Summary
| Total Assets | $516.50M |
| Total Deposits | $440.94M |
| Total Liabilities | $465.47M |
| Total Equity Capital | $51.03M |
| Net Income | $2.91M |
| Net Loans and Leases | $418.99M |
| Assets Per Employee ($Millions) | $13.24M |
| Bank Premises and Fixed Assets | $3.45M |
| Cash and Balances due from Depository Institutions | $7.14M |
| Deposits Held in Domestic Offices | $440.94M |
Key Performance Ratios
| Return on Assets (ROA) | 2.55% |
| Return on Equity (ROE) | 23.54% |
| Net Interest Margin | 5.38% |
| Efficiency Ratio | 56.49% |
| Tier 1 Risk-Based Capital Ratio | 13.781% |
| Net Loans and Leases to Core Deposits | 0% |
| Credit Loss Provision to Assets | 0% |
| Cash Dividends to Net Income (YTD Only) | 0% |
| Equity Capital to Assets | 9.881% |
| Earning Assets to total Assets | 95.47% |
Income and Expense
| Total Interest Income | $8.83M |
| Total Noninterest Income | $958.00k |
| Total Interest Expense | $3.02M |
| Total Noninterest Expense | $3.82M |
| Net Interest Income | $5.81M |
| Pre-tax Net Operating Income | $2.94M |
| Provision for Credit Losses | $0 |
| Discontinued Operations (Extraordinary Gains - Net) | $0 |
Additional Financial Info
| Goodwill and Other Intangibles | $0 |
| All Other Assets | $0 |
| Other Real Estate Owned | $0 |
| Other borrowed funds | $15.00M |
| Federal Funds Sold & Reverse Repurchase Agreement | $31.14M |
| Federal Funds Purchased and Repurchased Agreement | $0 |
| All Other Liabilities | $9.53M |
| Total Liabilities and Capital | $516.50M |
Securities
| Securities | $41.07M |
| Available-for-sale debt securities | $41.07M |
| Equity securities with readily determinable fair values not held for trading | $0 |
| Held-to-maturity securities | $0 |
| Subordinated Debt | $0 |
| Trading Account Assets | $0 |
| Trading Liabilities | $0 |
Frequently Asked Questions
What are the total assets of Bank of Lake Mills?
$516.50M as of the latest filing.
How much are Bank of Lake Mills's total deposits?
$440.94M in total deposits.
Where is Bank of Lake Mills located?
Lake Mills, WI.
What is the Net Interest Margin?
5.38%.
How many domestic offices does it operate?
2.
When was it established?
01/01/1893.
What is the Return on Assets (ROA)?
2.55%.
How much are total loans and leases?
$418.99M (latest filing).
What is the total interest income (latest filing)?
$8.83M.