FDIC-insured bank
1NB Bank — Carlyle, IL
Bank headquartered in Carlyle, Illinois, part of FIRST NATL BCORP CARLYLE INC.
Source: FDIC BankFind Suite, data as of June 30, 2026, fetched September 5, 2026
Headquarters and contact
| Address | 891 Fairfax St Carlyle, IL 62231 |
| County | Clinton |
| Metro area | St. Louis, MO-IL |
| Website | www.1nbbank.bank |
| Phone | not published in FDIC data, see the bank's website |
FDIC record
| FDIC Certificate | 14761 |
| Federal Reserve RSSD ID | 614948 |
| Status | Active |
| Charter class | SM (STATE) |
| Holding company | FIRST NATL BCORP CARLYLE INC |
| Domestic offices | 5 |
| Financials as of | June 30, 2026 |
How to find your 1NB 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.1nbbank.bank.
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Offices nearest to headquarters
| 1Nb Bank main office Carlyle, IL |
891 Fairfax St, 62231 |
| 1350 12Th Street Facility Carlyle, IL |
1350 12th St, 62231 |
| St. Rose Facility Branch Breese, IL |
18001 Saint Rose Rd, 62230 |
| Aviston Branch Aviston, IL |
500 W Harrison St, 62216 |
| Cape Girardeau Branch Cape Girardeau, MO |
1610 N Kingshighway St, 63701 |
Where 1NB Bank has offices
Cities with the most 1NB Bank offices
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| Byline Bank Chicago | $9.91 billion |
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| First Mid Bank & Trust, National Association Mattoon | $9.14 billion |
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