SIU CREDIT UNION Routing Number 281276420 — CARBONDALE, IL

The ABA routing number 281276420 belongs to SIU CREDIT UNION in CARBONDALE, IL. Use for ACH transfers, direct deposits, and check payments.

Updated Jun 2026 SIU CREDIT UNION CARBONDALE ABA Verified
SIU CREDI…
IL
CARBONDALE
281276420
Result

SIU CREDIT UNION

CARBONDALE, IL 62902

ABA Verified

ABA Routing Number

281276420

Routing Number Breakdown

2812 Fed Symbol
·
7642 Institution
·
0 Check Digit
State IL
ZIP Code 62902
Phone (618) 549-8612
Address PO BOX 2888, CARBONDALE, IL 62902

About Routing Number 281276420 — SIU CREDIT UNION

Routing number 281276420 is the official 9-digit ABA routing number registered to SIU CREDIT UNION at PO BOX 2888, CARBONDALE, IL 62902. It is registered with the American Bankers Association and the Federal Reserve E-Payments Routing Directory. This number is used exclusively within the US domestic payment system — for ACH transfers, direct deposits, check processing, and domestic wire transfers routed through Fedwire. It cannot be used for international transfers, which require a SWIFT/BIC code.

How to Read Routing Number 281276420

The 9-digit number 281276420 is structured in three segments: 2812 is the Federal Reserve routing symbol — the first two digits identify the Federal Reserve district and the next two identify the specific Federal Reserve processing office handling SIU CREDIT UNION's transactions. 7642 is the ABA institution identifier — four digits assigned by the American Bankers Association uniquely to SIU CREDIT UNION. 0 is the check digit — a single digit calculated from the first eight digits using a weighted sum formula (3-7-1 multipliers). Payment processing systems run this calculation in real time to catch routing number entry errors before any funds move.

ACH, Direct Deposit, and Wire — When to Use 281276420

  • Direct Deposit — Payroll and Government Payments: Provide routing number 281276420 and your account number to set up payroll direct deposit, IRS tax refunds, Social Security, VA benefits, or any recurring government payment.
  • ACH Transfers — Bill Payments and Bank Transfers: Enter 281276420 when authorising electronic debits or credits — utility bills, insurance premiums, subscription services, or bank-to-bank transfers via NACHA's ACH network.
  • Check Payments: This routing number is printed at the bottom-left of every SIU CREDIT UNION personal check in CARBONDALE — the first 9-digit sequence in the MICR line.
  • Domestic Wire Transfers via Fedwire: Confirm with SIU CREDIT UNION whether 281276420 applies to wires — many banks use a separate wire routing number. Fedwire settles same-day in real time.

What 281276420 Cannot Be Used For

  • International wire transfers — require a SWIFT/BIC code. Find SIU CREDIT UNION's SWIFT code at the SWIFT Code Lookup.
  • Indian bank transfers (NEFT, RTGS, IMPS, UPI) — require an IFSC code. Use the IFSC Code Lookup.
  • Cheque clearing in India — requires a MICR code. Use the MICR Code Lookup.

How to Verify Routing Number 281276420 Is Correct

Before using 281276420 for a large ACH or wire transfer, verify it three ways: (1) Check the bottom-left of a SIU CREDIT UNION personal check — the routing number must match. (2) Log into SIU CREDIT UNION online banking under Account Details. (3) Cross-check against the Federal Reserve routing directory. BankZop sources all routing data from official ABA and Federal Reserve records as of Jun 2026.

Browse more SIU CREDIT UNION routing numbers in IL or across all states. For all US banks, visit the Routing Number Lookup. For international transfers, use the SWIFT Code Lookup. For loan EMI planning, try the EMI Calculator.

Data sourced from the American Bankers Association (ABA) and the Federal Reserve E-Payments Routing Directory. Last reviewed Jun 2026 by BankZop Editorial Team.

Frequently Asked Questions — Routing Number 281276420