Branch Network
Bank of Prairie Du Sac Locations & Branches Prairie du Sac, Wisconsin
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Bank of Prairie Du Sac operates 2 branches from its headquarters in Prairie du Sac, WI, . Its main office is at 555 Park Ave, Prairie Du Sac, WI 53578.
Bank of Prairie Du Sac branch network
Both branches are in WISCONSIN, across 2 cities. Its largest office by deposits is its main office in Prairie Du Sac, WI, with $644.3M (100.0% of its branch deposits). It had the same number of branches on June 30, 2025.
Bank of Prairie Du Sac at a glance
Its CET1 capital ratio was 21.84% at Q2 2026, comfortably above the 7% level required once the capital conservation buffer is included.
- Total assets, Q2 2026
- $744.5M
- CET1 ratio, Q2 2026
- 21.84%
- Deposit insurance
- FDIC
- Regulator
- FDIC
- Latest call report
- Q2 2026, FFIEC 041
- Established
- 1916
Full financial profile · Is Bank of Prairie Du Sac safe? · Bank of Prairie Du Sac Q3 2026 call report, filed October 23, 2026 (preliminary) · 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: Prairie Du Sac, WI (1 branch) | 1 of 1 | 100.0% | $644.3M |
| State: WI (2 branches) | 47 of 185 | 0.3% | $644.3M |
Ranked by total assets among banks headquartered in the state: Largest banks in Wisconsin.
Share by county and metro area
Bank of Prairie Du Sac'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 |
|---|---|---|---|---|
| Sauk, WI (2 branches) | 1 of 13 | 26.4% | $644.3M | $2.44B |
Metro areas
| Metro area | Rank | Deposit share | Deposits | Metro total |
|---|---|---|---|---|
| Baraboo, WI (2 branches) | 1 of 13 | 26.4% | $644.3M | $2.44B |
| Branch | Location | ZIP | Deposits |
|---|---|---|---|
| Bank of Prairie Du Sac (main office) | Prairie Du Sac, WI | 53578 | $644.3M |
| Sauk City Branch | Sauk City, WI | 53583 | $0 |
Source: FDIC Summary of Deposits, June 30, 2026. How the survey works.
Regulator records: FDIC BankFind (cert 14660) · FFIEC NIC profile (RSSD 997847)