FDIC-insured bank
Security Bank — New Auburn, WI
Bank headquartered in New Auburn, Wisconsin, part of SECURITY BANK SHARES INC.
Source: FDIC BankFind Suite, data as of June 30, 2026, fetched September 5, 2026
Headquarters and contact
| Address | 112 E Main St New Auburn, WI 54757 |
| County | Chippewa |
| Metro area | Eau Claire, WI |
| Website | www.securityonlinebank.com |
| Phone | not published in FDIC data, see the bank's website |
FDIC record
| FDIC Certificate | 10015 |
| Federal Reserve RSSD ID | 20053 |
| Status | Active |
| Charter class | NM (STATE) |
| Holding company | SECURITY BANK SHARES INC |
| Domestic offices | 4 |
| Financials as of | June 30, 2026 |
How to find your Security Bank routing number
FDIC does not publish ABA routing numbers, and many banks use different routing numbers by state or by account type. The reliable places to find yours: the bottom left of a check from this bank, the "account details" screen in its online banking, or its official website at www.securityonlinebank.com.
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Offices nearest to headquarters
| Security Bank main office New Auburn, WI |
112 E Main St, 54757 |
| Sand Creek Branch Sand Creek, WI |
County Road 1, 54765 |
| Bloomer Office Bloomer, WI |
1923 17th Ave, 54724 |
| Ridgeland Office Branch Ridgeland, WI |
101 Main Street, 54763 |
Where Security Bank has offices
Cities with the most Security Bank offices
Largest banks headquartered elsewhere in Wisconsin
| Associated Bank, National Association Green Bay | $51.76 billion |
| Nicolet National Bank Green Bay | $15.39 billion |
| Johnson Bank Racine | $7.07 billion |
| Bank First, N.A. Manitowoc | $5.94 billion |
| John Deere Financial, f.s.b. Middleton | $4.93 billion |
| Town Bank, National Association Hartland | $4.71 billion |
| First Business Bank Madison | $4.41 billion |
| Lake Ridge Bank Middleton | $3.35 billion |
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