FDIC-insured bank
Security Bank, s.b. — Springfield, IL
Bank headquartered in Springfield, Illinois, part of SECURITY MIDWEST BCORP INC.
Source: FDIC BankFind Suite, data as of June 30, 2026, fetched September 5, 2026
Headquarters and contact
| Address | 510 E Monroe St Springfield, IL 62701 |
| County | Sangamon |
| Metro area | Springfield, IL |
| Website | www.securitybk.com |
| Phone | not published in FDIC data, see the bank's website |
FDIC record
| FDIC Certificate | 27723 |
| Federal Reserve RSSD ID | 218878 |
| Status | Active |
| Charter class | SI (STATE) |
| Holding company | SECURITY MIDWEST BCORP INC |
| Ownership | Mutual |
| Domestic offices | 3 |
| Financials as of | June 30, 2026 |
How to find your Security Bank, s.b. 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.securitybk.com.
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Offices nearest to headquarters
| Security Bank, S.B. main office Springfield, IL |
510 E Monroe St, 62701 |
| 3001 Chatham Road Branch Springfield, IL |
3001 Chatham Rd, 62704 |
| 2500 Stevenson Drive Branch Springfield, IL |
2500 Stevenson Dr, 62703 |
Where Security Bank, s.b. has offices
Cities with the most Security Bank, s.b. offices
Other banks headquartered in Springfield
| INB, National Association | $2.68 billion |
| Bank of Springfield | $2 billion |
| Prairie State Bank and Trust | $840.08 million |
Largest banks headquartered elsewhere in Illinois
| BMO Bank National Association Chicago | $254.97 billion |
| The Northern Trust Company Chicago | $178.57 billion |
| CIBC Bank USA Chicago | $66.50 billion |
| Busey Bank Champaign | $18.15 billion |
| Byline Bank Chicago | $9.91 billion |
| Wintrust Bank, National Association Chicago | $9.57 billion |
| Lake Forest Bank & Trust Company, National Association Lake Forest | $9.25 billion |
| First Mid Bank & Trust, National Association Mattoon | $9.14 billion |
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