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Security Bank
✓ FDIC-insured · Active FDIC Certificate #10015
Security Bank is an FDIC-insured state-chartered bank that is not a Federal Reserve member (supervised by the FDIC), headquartered in New Auburn, Wisconsin, established in 1907. As of the 06/30/2026 FDIC call report, it reported $254M in total assets and $216M in deposits. FDIC location data lists 4 offices in Wisconsin. The FDIC classifies it as a community bank. It is owned by the holding company SECURITY BANK SHARES INC (Iron River, WI).
Financial data as of the 06/30/2026 FDIC call report.
Where it operates
All 4 of Security Bank's FDIC-listed offices are in Wisconsin. Browse banks in New Auburn for other local options.
Branch locations
| Security Bank Sand Creek Branch · Full Service - Brick And Mortar | County Road 1 Sand Creek, WI 54765 Map ↗ |
| Security Bank Ridgeland Office Branch · Full Service - Brick And Mortar | 101 Main Street Ridgeland, WI 54763 Map ↗ |
| Security Bank Bloomer Office · Full Service - Brick And Mortar | 1923 17th Ave Bloomer, WI 54724 Map ↗ |
| Security Bank Security Bank · Full Service - Brick And Mortar | 112 E Main St New Auburn, WI 54757 Map ↗ |
Holding company: SECURITY BANK SHARES INC
The FDIC lists SECURITY BANK SHARES INC, based in Iron River, WI, as the top holding company for Security Bank. It also owns one other FDIC-insured bank:
- Security State Bank, Iron River, WI ($136M in assets)
FDIC deposit insurance applies separately to each insured bank charter, even when they share a holding company. Confirm the charter before you spread deposits.
Similar-size banks in Wisconsin
Active FDIC-insured banks headquartered in Wisconsin with total assets closest to Security Bank's $254M. See all banks in Wisconsin.
| Bank | HQ city | Assets | Offices |
|---|---|---|---|
| Waumandee State Bank | Waumandee | $345M | 8 |
| First National Community Bank | New Richmond | $345M | 5 |
| Citizens First Bank | Viroqua | $344M | 6 |
| Cumberland Federal Bank, FSB | Cumberland | $342M | 2 |
| Bank of Alma | Alma | $340M | 4 |
| Clare Bank, National Association | Platteville | $332M | 8 |
| Northern State Bank | Ashland | $331M | 7 |
| State Bank of Newburg | Newburg | $328M | 2 |
Security Bank: common questions
Is Security Bank FDIC-insured?
Yes. Security Bank is an active FDIC-insured institution, FDIC Certificate #10015. Deposits are insured up to $250,000 per depositor, per ownership category. You can confirm this on FDIC BankFind.
Where is Security Bank headquartered?
Security Bank is headquartered at 112 E Main St, New Auburn, WI 54757, according to FDIC records.
How many branches does Security Bank have?
FDIC location data lists 4 offices for Security Bank, all in Wisconsin.
Who owns Security Bank?
The FDIC lists SECURITY BANK SHARES INC of Iron River, WI as the top holding company for Security Bank. The same holding company owns 1 other FDIC-insured bank.
Source: FDIC BankFind Suite (institution, location, and call report data). BankNearMe.com does not rank or rate banks.