Ergo Bank
Markesan, WI · Owner: FS Bancshares Inc
$277M
total assets, June 30, 2026
$277M
total assets, June 30, 2026
Ergo Bank is a state nonmember bank based in Markesan, WI, owned by FS Bancshares Inc. As of June 30, 2026 it held $276.7 million in assets and $226.2 million in deposits; assets were up 12.6% from a year before. It has 6 branches.
Updated Oct 11, 2026 · numbers as of June 30, 2026
Total assets
$277M
+12.6% in a year · +5.3% in a quarter
Deposits
$226M
+7.7% in a year · +2.0% in a quarter
Loans
$225M
+13.5% in a year · +5.4% in a quarter
Profit so far
$441K
Jan 1 to Jun 30, 2026 · -52.3% in a year
Capital ratio
8.42%
-0.30 pts in a year
Return on assets
0.33%
-0.43 pts in a year
Facts
- Type
- State nonmember bank
- Head office
- 730 N Margaret St, Markesan, WI, 53946
- County
- Green Lake
- Holding company
- FS Bancshares Inc
- Established
- Jan 20, 1910
- Employees
- 52
- Branches
- 6
- Website
- www.ergobank.com
- Id
- b10004
Quarter by quarter
March 31, 1984 to June 30, 2026
Assets, deposits and loans
Each quarter end, US dollars
Profit by quarter
Net income of each quarter, the last 12
Ratios
Percent. Return on assets and net interest margin are yearly rates.
Branches
6 offices as of June 30, 2026, holding $226.2 million in deposits
Branch map
Every branch, sized by its deposits
| State | Branches | Deposits | Share |
|---|---|---|---|
| Wisconsin | 6 | $226M | 100.0% |
| Largest branches | Place | Deposits |
|---|---|---|
| Ergo Bank (main office) | Markesan, WI | $73.5M |
| 314 West State Street Branch | Fox Lake, WI | $61.0M |
| Kendall Branch | Kendall, WI | $29.9M |
| Wilton Branch | Wilton, WI | $27.6M |
| Lomira Branch | Lomira, WI | $21.6M |
| Norwalk Branch | Norwalk, WI | $12.6M |
Related pages
Questions and answers
How big is Ergo Bank?
$276.7 million in total assets and $226.2 million in deposits as of June 30, 2026, with assets up 12.6% from a year before. Its loans were $224.8 million.
How many branches does Ergo Bank have?
6 branches in Wisconsin as of June 30, 2026.
Is Ergo Bank profitable?
Yes: it earned $441,000 from January 1 to June 30, 2026 (down 52.3% from the same months a year before). Its return on assets was 0.33% a year; about 1% is typical.
Who owns Ergo Bank?
Ergo Bank is owned by FS Bancshares Inc, its holding company.
Official public data from the reports every insured bank files each quarter. Profit so far runs from January 1 to the quarter end. Branch deposits are counted once a year, as of June 30. New quarters appear about two months after the quarter ends.