FDIC-insured bank
1NB Bank
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 |
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 |