ZIA CREDIT UNION Routing Number 307084240 — LOS ALAMOS, NM

About Routing Number 307084240 — ZIA CREDIT UNION

Routing number 307084240 is the official 9-digit ABA routing number registered to ZIA CREDIT UNION at P.O. BOX 490, LOS ALAMOS, NM 87544. 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 307084240

The 9-digit number 307084240 is structured in three segments: 3070 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 ZIA CREDIT UNION's transactions. 8424 is the ABA institution identifier — four digits assigned by the American Bankers Association uniquely to ZIA 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 307084240

• Direct Deposit — Payroll and Government Payments: Provide routing number 307084240 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 307084240 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 ZIA CREDIT UNION personal check in LOS ALAMOS — the first 9-digit sequence in the MICR line.
• Domestic Wire Transfers via Fedwire: Confirm with ZIA CREDIT UNION whether 307084240 applies to wires — many banks use a separate wire routing number. Fedwire settles same-day in real time.

What 307084240 Cannot Be Used For

• International wire transfers — require a SWIFT/BIC code. Find ZIA 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 307084240 Is Correct

Before using 307084240 for a large ACH or wire transfer, verify it three ways: (1) Check the bottom-left of a ZIA CREDIT UNION personal check — the routing number must match. (2) Log into ZIA 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 ZIA CREDIT UNION routing numbers in NM 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.