FDIC-insured bank
First State Bank — Mendota, IL
Bank headquartered in Mendota, Illinois, part of TRI-COUNTY FINANCIAL GROUP INC.
Source: FDIC BankFind Suite, data as of June 30, 2026, fetched September 5, 2026
Headquarters and contact
| Address | 706 Washington St Mendota, IL 61342 |
| County | Lasalle |
| Metro area | Ottawa, IL |
| Website | WWW.FIRSTSTATEBANK.BIZ |
| Phone | not published in FDIC data, see the bank's website |
FDIC record
| FDIC Certificate | 15752 |
| Federal Reserve RSSD ID | 887340 |
| Status | Active |
| Charter class | NM (STATE) |
| Holding company | TRI-COUNTY FINANCIAL GROUP INC |
| Domestic offices | 20 |
| Financials as of | June 30, 2026 |
How to find your First State 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.FIRSTSTATEBANK.BIZ.
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Offices nearest to headquarters
| First State Bank main office Mendota, IL |
706 Washington St, 61342 |
| Mendota Plaza Branch Mendota, IL |
1403 13th Ave, 61342 |
| West Brooklyn Branck Branch West Brooklyn, IL |
752 2nd St., 61378 |
| La Moille Facility La Moille, IL |
90 N Main St, 61330 |
| Peru Branch Peru, IL |
4351 Venture Dr, 61354 |
| Shabbona Branch Shabbona, IL |
203 W Comanche Ave, 60550 |
| Ottawa Branch Ottawa, IL |
1212 La Salle St, 61350 |
| Princeton Branch Princeton, IL |
1693 N Main St, 61356 |
| Mcnabb Branch Mcnabb, IL |
411 W Main St, 61335 |
| Rochelle Branch Rochelle, IL |
304 Highway 38 E, 61068 |
| Waterman Branch Waterman, IL |
10001 U S 30, 60556 |
| Streator Branch Streator, IL |
115 Plaza Dr, 61364 |
20 offices in total. Browse them by city through the state pages.
Where First State Bank has offices
Cities with the most First State Bank offices
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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