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Bank of Sun Prairie
✓ FDIC-insured · Active FDIC Certificate #13565
Bank of Sun Prairie is an FDIC-insured state-chartered bank that is not a Federal Reserve member (supervised by the FDIC), headquartered in Sun Prairie, Wisconsin, established in 1903. As of the 06/30/2026 FDIC call report, it reported $841M in total assets and $719M in deposits. FDIC location data lists 8 offices in Wisconsin. The FDIC classifies it as a community bank. It is owned by the holding company BOSP BANCSHARES INC (Sun Prairie, WI).
Financial data as of the 06/30/2026 FDIC call report.
Where it operates
All 8 of Bank of Sun Prairie's FDIC-listed offices are in Wisconsin. Browse banks in Sun Prairie for other local options.
Branch locations
| Bank of Sun Prairie Hatley Branch · Full Service - Brick And Mortar | 410 State Road Hatley, WI 54440 Map ↗ |
| Bank of Sun Prairie Antigo Branch · Full Service - Brick And Mortar | 100 S Superior St Antigo, WI 54409 Map ↗ |
| Bank of Sun Prairie Cottage Grove Branch · Full Service - Brick And Mortar | 419 W Cottage Grove Rd Cottage Grove, WI 53527 Map ↗ |
| Bank of Sun Prairie Wittenberg Branch · Full Service - Brick And Mortar | 201 E Westgor Ave Wittenberg, WI 54499 Map ↗ |
| Bank of Sun Prairie Grand Avenue Office Branch · Full Service - Brick And Mortar | 695 S Grand Ave Sun Prairie, WI 53590 Map ↗ |
| Bank of Sun Prairie Sun Prairie West High School Branch · Limited Service - Mobile/Seasonal | 2850 Ironwood Dr Sun Prairie, WI 53590 Map ↗ |
| Bank of Sun Prairie Banner Banks Branch · Full Service - Brick And Mortar | 416 Main St Birnamwood, WI 54414 Map ↗ |
| Bank of Sun Prairie Bank Of Sun Prairie · Full Service - Brick And Mortar | 228 E Main St Sun Prairie, WI 53590 Map ↗ |
Holding company: BOSP BANCSHARES INC
The FDIC lists BOSP BANCSHARES INC, based in Sun Prairie, WI, as the top holding company for Bank of Sun Prairie. The FDIC shows no other active insured banks under the same holding company.
Similar-size banks in Wisconsin
Active FDIC-insured banks headquartered in Wisconsin with total assets closest to Bank of Sun Prairie's $841M. See all banks in Wisconsin.
| Bank | HQ city | Assets | Offices |
|---|---|---|---|
| The Farmers & Merchants Bank | Berlin | $949M | 2 |
| Farmers and Merchants Union Bank | Columbus | $872M | 13 |
| DMB Community Bank | Madison | $835M | 2 |
| The Bank of New Glarus | New Glarus | $823M | 8 |
| Royal Bank | Elroy | $816M | 21 |
| Hiawatha National Bank | Hager City | $781M | 8 |
| Westbury Bank | Waukesha | $772M | 9 |
| Fortifi Bank | Berlin | $750M | 10 |
Bank of Sun Prairie: common questions
Is Bank of Sun Prairie FDIC-insured?
Yes. Bank of Sun Prairie is an active FDIC-insured institution, FDIC Certificate #13565. Deposits are insured up to $250,000 per depositor, per ownership category. You can confirm this on FDIC BankFind.
Where is Bank of Sun Prairie headquartered?
Bank of Sun Prairie is headquartered at 228 E Main St, Sun Prairie, WI 53590, according to FDIC records.
How many branches does Bank of Sun Prairie have?
FDIC location data lists 8 offices for Bank of Sun Prairie, all in Wisconsin.
Who owns Bank of Sun Prairie?
The FDIC lists BOSP BANCSHARES INC of Sun Prairie, WI as the top holding company for Bank of Sun Prairie.
Source: FDIC BankFind Suite (institution, location, and call report data). BankNearMe.com does not rank or rate banks.