Bank of Prairie du Sac
Prairie Du Sac, WI · Owner: Ploetz Investments Partnership
$745M
total assets, June 30, 2026
$745M
total assets, June 30, 2026
Bank of Prairie du Sac is a state nonmember bank based in Prairie Du Sac, WI, owned by Ploetz Investments Partnership. As of June 30, 2026 it held $744.5 million in assets and $644.3 million in deposits; assets were up 15.7% from a year before. It has 2 branches.
Updated Oct 11, 2026 · numbers as of June 30, 2026
Total assets
$745M
+15.7% in a year · -1.4% in a quarter
Deposits
$644M
+16.7% in a year · -1.5% in a quarter
Loans
$393M
+6.0% in a year · +3.0% in a quarter
Profit so far
$5.9M
Jan 1 to Jun 30, 2026 · +15.8% in a year
Capital ratio
13.70%
-1.16 pts in a year
Return on assets
1.57%
-0.05 pts in a year
Facts
- Type
- State nonmember bank
- Head office
- 555 Park Ave, Prairie Du Sac, WI, 53578
- County
- Sauk
- Holding company
- Ploetz Investments Partnership
- Established
- Mar 22, 1916
- Employees
- 51
- Branches
- 2
- Website
- www.bankpds.com
- Id
- b14660
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
2 offices as of June 30, 2026, holding $644.3 million in deposits
Branch map
Every branch, sized by its deposits
| State | Branches | Deposits | Share |
|---|---|---|---|
| Wisconsin | 2 | $644M | 100.0% |
| Largest branches | Place | Deposits |
|---|---|---|
| Bank Of Prairie Du Sac (main office) | Prairie Du Sac, WI | $644M |
| Sauk City Branch | Sauk City, WI | $0 |
Related pages
Questions and answers
How big is Bank of Prairie du Sac?
$744.5 million in total assets and $644.3 million in deposits as of June 30, 2026, with assets up 15.7% from a year before. Its loans were $393.5 million.
How many branches does Bank of Prairie du Sac have?
2 branches in Wisconsin as of June 30, 2026.
Is Bank of Prairie du Sac profitable?
Yes: it earned $5.93 million from January 1 to June 30, 2026 (up 15.8% from the same months a year before). Its return on assets was 1.57% a year; about 1% is typical.
Who owns Bank of Prairie du Sac?
Bank of Prairie du Sac is owned by Ploetz Investments Partnership, 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.