FDIC-insured bank
First Security Bank
Bank headquartered in Mackinaw, Illinois, part of FIRST BCORP OF TAYLORVILLE INC.
Source: FDIC BankFind Suite, data as of June 30, 2026, fetched September 5, 2026
Headquarters and contact
| Address | 101 E Fast Ave Mackinaw, IL 61755 |
| County | Tazewell |
| Metro area | Peoria, IL |
| Website | www.fsb1.com |
| Phone | not published in FDIC data, see the bank's website |
FDIC record
| FDIC Certificate | 3698 |
| Federal Reserve RSSD ID | 416339 |
| Status | Active |
| Charter class | NM (STATE) |
| Holding company | FIRST BCORP OF TAYLORVILLE INC |
| Domestic offices | 4 |
| Financials as of | June 30, 2026 |
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.fsb1.com.
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Offices nearest to headquarters
| First Security Bank main office Mackinaw, IL |
101 E Fast Ave, 61755 |
| Heritage Lake Branch Mackinaw, IL |
#2 Bradford Drive, 61755 |
| Deer Creek Branch Deer Creek, IL |
201 E 1st Ave, 61733 |
| Danvers Branch Danvers, IL |
116 E Exchange St, 61732 |