Oak Bank
✓ FDIC-insured · Active FDIC Certificate #35333
Oak Bank is an FDIC-insured state-chartered bank that is not a Federal Reserve member (supervised by the FDIC), headquartered in Fitchburg, Wisconsin, established in 2000. As of the 06/30/2026 FDIC call report, it reported $486M in total assets and $420M in deposits. FDIC location data lists 1 office in Wisconsin. The FDIC classifies it as a community bank. It is owned by the holding company OAK FINANCIAL INC (Fitchburg, WI).
Financial data as of the 06/30/2026 FDIC call report.
Where it operates
Oak Bank's only FDIC-listed office is in Wisconsin. Browse banks in Fitchburg for other local options.
Branch locations
| Oak Bank Oak Bank · Full Service - Brick And Mortar | 5951 Mckee Rd Fitchburg, WI 53719 Map ↗ |
Holding company: OAK FINANCIAL INC
The FDIC lists OAK FINANCIAL INC, based in Fitchburg, WI, as the top holding company for Oak Bank. 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 Oak Bank's $486M. See all banks in Wisconsin.
| Bank | HQ city | Assets | Offices |
|---|---|---|---|
| Unity Bank | Augusta | $575M | 13 |
| Baraboo State Bank | Baraboo | $570M | 7 |
| Capitol Bank | Madison | $565M | 3 |
| First State Bank | New London | $558M | 8 |
| Northwestern Mutual Wealth Management | Milwaukee | $558M | 1 |
| Premier Community Bank | Marion | $552M | 10 |
| Mound City Bank | Platteville | $551M | 6 |
| Bank of Lake Mills | Lake Mills | $534M | 2 |
Oak Bank: common questions
Is Oak Bank FDIC-insured?
Yes. Oak Bank is an active FDIC-insured institution, FDIC Certificate #35333. Deposits are insured up to $250,000 per depositor, per ownership category. You can confirm this on FDIC BankFind.
Where is Oak Bank headquartered?
Oak Bank is headquartered at 5951 Mckee Rd, Fitchburg, WI 53719, according to FDIC records.
How many branches does Oak Bank have?
FDIC location data lists 1 office for Oak Bank, all in Wisconsin.
Who owns Oak Bank?
The FDIC lists OAK FINANCIAL INC of Fitchburg, WI as the top holding company for Oak Bank.
Source: FDIC BankFind Suite (institution, location, and call report data). BankNearMe.com does not rank or rate banks.