Bank routing number ยท Oldham, South Dakota
First National Bank Routing Number (ABA): 091204255
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The First National Bank routing number is 091204255. It is the primary ABA routing transit number on the bank's FFIEC National Information Center record, refreshed here on October 27, 2026.
First National Bank at a glance
Its CET1 capital ratio was 20.47% at Q2 2026, comfortably above the 7% level required once the capital conservation buffer is included.
- Total assets, Q2 2026
- $477.8M
- CET1 ratio, Q2 2026
- 20.47%
- Deposit insurance
- FDIC
- Regulator
- OCC
- Domestic offices
- 12 FDIC institution directory, current count
- Latest call report
- Q2 2026, FFIEC 041
- Established
- 1985
Full financial profile · Is First National Bank safe? · First National Bank call report · Branch locations
First National Bank routing numbers on file
| Routing number | Type | Status | Source |
|---|---|---|---|
| 091204255 | Primary ABA | Active | FFIEC NIC |
Record refreshed here on October 27, 2026. NIC holds one primary number per bank; First National Bank publishes any other numbers it uses itself.
What the digits mean
The first two digits, 09, place this number in the Federal Reserve Bank of Minneapolis's district (District 9). Digits five through eight, 0425, identify the institution within that district. The last digit, 5, is a check digit, and the number passes the standard check: weight the nine digits 3, 7, 1, 3, 7, 1, 3, 7, 1 and the sum is a multiple of 10.
Before you send money to First National Bank
A routing number tells the payment network which financial institution holds an account. You give it with an account number for ACH transfers through the automated clearing house, such as direct deposit, bill pay and transfers from a checking account, which usually settle in one to two business days. An international wire to a US account normally needs the bank's SWIFT code as well.
Match this number against the one on your First National Bank checks or in its online banking. Ask the bank for wire instructions (www.firstnationalbanks.com). Our record does not show whether this number receives wires. The Federal Reserve's E-Payments Routing Directory shows it: its Fedwire participant search lists the numbers that can receive Fedwire transfers, and its FedACH search lists those that receive ACH payments. How to confirm any routing number.
About First National Bank
First National Bank is headquartered in Oldham, South Dakota and was established in 1985. It reported $477.8M in total assets and $380.1M in deposits for Q2 2026, the 23rd largest of the 56 banks headquartered in South Dakota. It reports 12 domestic offices. Its deposits have been FDIC insured since 1985. Its primary federal regulator is the OCC.
What the digits in 091204255 mean
The first four digits, 0912, are the Federal Reserve routing symbol. The prefix 09 places the number in the 9th Federal Reserve District (Minneapolis). That is also the district where the bank is headquartered. Digits five through eight, 0425, identify the institution within its Federal Reserve district. The last digit, 5, is a check digit. Weighting the digits 3, 7 and 1 in turn gives 3 x 4 + 7 x 14 + 10 = 120, a multiple of 10, so 091204255 is a well-formed routing number. A mistyped digit almost always breaks that sum.
What is the First National Bank routing number?
The First National Bank routing number is 091204255. It is the primary ABA routing transit number registered to First National Bank, headquartered in Oldham, SD. The number comes from the FFIEC National Information Center institution record, last refreshed here on October 27, 2026.
What is the First National Bank wire routing number?
This page lists the primary routing number registered to First National Bank. The record does not say whether the bank uses the same number for wire transfers. Confirm the wire routing number with First National Bank before sending a wire.
Is ABA number 091204255 the routing number for First National Bank?
Yes. It is the primary routing number registered to First National Bank.
Which bank uses routing number 091204255?
It belongs to First National Bank, headquartered in Oldham, SD. It is the bank's primary ABA routing number (FDIC certificate 25894).
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View First National Bank's full profile →
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Regulator records: FDIC BankFind (cert 25894) · FFIEC NIC profile (RSSD 944355)