Ergo Bank
Markesan, Wisconsin, Green Lake County
$277M in total assets, the 2,623rd largest of 4,309 US banks and 105th of 155 headquartered in Wisconsin.
- FDIC certificate
- 10004
- Established
- 1910
- Owned by
- Fs Bancshares Inc
- Primary regulator
- FDIC
- Website
- www.ergobank.com
At a glance
Compared with 109 banks headquartered in Wisconsin with $100 million to $1 billion in assets, as of June 30, 2026.
| Measure | This bank | Percentile | Peer range, middle 90% | Peer median |
|---|---|---|---|---|
| Total assets | $277M | 34% | $345M | |
| Loans | $225M | 44% | $248M | |
| Deposits | $226M | 37% | $288M | |
| Return on assets | 0.43% | 6% | 1.28% | |
| Net interest margin | 4.21% | 81% | 3.85% | |
| Efficiency ratio | 81.4% | 92% | 60.7% | |
| Equity to assets | 9.20% | 28% | 10.40% | |
| Loans to deposits | 99% | 78% | 86% |
Growth
Total assets grew 16.6% a year over the last 5 years and 13.7% a year over 10 years, including 1 acquisition in the last 10 years.
Acquisitions
| Closed | Acquired bank | Assets at acquisition |
|---|---|---|
| Mar 2023 | Farmers and Merchants Bank of Kendall Kendall, WI | $81M |
| Sep 1991 | State Bank of Fox Lake Fox Lake, WI | $26M |
Where they operate
6 branches in 3 counties.
Largest markets by deposits
| County | Deposits | Market share | Rank |
|---|---|---|---|
| Dodge County, WI | $83M | 5.2% | 7 of 10 |
| Green Lake County, WI | $74M | 5.0% | 5 of 6 |
| Monroe County, WI | $70M | 7.4% | 5 of 8 |
Deposits by branch from the FDIC Summary of Deposits, June 2026. Rank among all banks with branches in that county.
Branch history since 2016
Net gain of 4 branches since 2016 (2 to 6, +200.0%). 1 opened, 3 acquired, 0 closed or sold.
| Period | What happened | Opened or acquired | Closed or sold | Net change | Branches at end |
|---|---|---|---|---|---|
| Start of 2016 | Starting point | 2 | |||
| 2023 | Acquired Farmers and Merchants Bank of Kendall | 3 | 0 | +3 | 5 |
| 2025 | Opened Lomira | 1 | 0 | +1 | 6 |
Balance sheet and earnings
Loans by type
| Type | Share | This bank | Peers |
|---|---|---|---|
| Commercial real estate | 36% | 28% | |
| Farmland | 22% | 8% | |
| 1-4 family residential | 15% | 32% | |
| Business (C&I) | 11% | 10% | |
| Agricultural | 8% | 2% | |
| Multifamily | 3% | 8% | |
| Construction and land | 2% | 7% | |
| Consumer | 1% | 2% | |
| Other | 2% | 2% |
Deposits by type
| Type | Share | This bank | Peers |
|---|---|---|---|
| Time deposits | 47% | 34% | |
| Other interest-bearing | 43% | 48% | |
| Noninterest-bearing | 10% | 19% |
Brokered deposits are 8.5% of deposits (peers 5.6%).
Return on assets
Trailing four quarters, with the peer median.
Credit and capital
| This bank | Peer median | |
|---|---|---|
| Noncurrent loans | 1.74% | 0.22% |
| Net charge-offs, annualized | -0.00% | 0.00% |
| Reserves to loans | 1.10% | 1.15% |
| Leverage ratio | 8.42% | 10.95% |
Noncurrent loans exclude government-guaranteed portions.
Related banks
Similar size in Wisconsin
Largest competitors in Dodge County, WI
Figures as of June 30, 2026 from the bank's Call Report, FDIC structure and branch data, and the Federal Reserve. Short link: bankingstats.com/ergo