ILLINOIS SERVICE Routing Number in CHICAGO, IL
1 ILLINOIS SERVICE routing number found in CHICAGO, IL. Click any routing number to view full details — for ACH transfers, direct deposits, and wire payments.
ILLINOIS SERVICE Routing Number in CHICAGO, IL
ILLINOIS SERVICE has 1 routing number registered in CHICAGO, IL with the American Bankers Association (ABA) and the Federal Reserve E-Payments Routing Directory. Each 9-digit routing number uniquely identifies ILLINOIS SERVICE's CHICAGO processing location within the US payment network. BankZop sources all routing data directly from official ABA records — click any routing number above to view its full details and copy it instantly.
The ILLINOIS SERVICE routing number for CHICAGO, IL is used for setting up direct deposits, authorising ACH payments, initiating domestic wire transfers, and check processing. Always use the specific routing number assigned to the location where your account was opened.
What to Do After Finding the ILLINOIS SERVICE CHICAGO Routing Number
- Direct deposit: Provide the 9-digit routing number along with your account number to your employer's payroll system, the IRS (for tax refunds), or any government benefit agency.
- ACH bill payment: Enter the routing number when setting up electronic payments to utilities, insurance providers, or subscription services that debit your ILLINOIS SERVICE account.
- Wire transfer: Confirm with ILLINOIS SERVICE's wire department whether this ABA routing number applies to wire transfers — many banks use a different wire routing number.
- Check verification: Cross-check the routing number printed at the bottom-left of your ILLINOIS SERVICE check against the number shown here to confirm accuracy.
Why ILLINOIS SERVICE May Have This Routing Number in CHICAGO
ILLINOIS SERVICE uses a single routing number for CHICAGO, IL — assigned by the ABA to identify this specific ILLINOIS SERVICE processing location within the Federal Reserve's payment system. This 9-digit code is what routes ACH debits, credits, and wire transfers to the correct ILLINOIS SERVICE office for settlement.
ACH vs Wire Transfer — Which Routing Number to Use
This is one of the most common questions about ILLINOIS SERVICE CHICAGO routing numbers:
| Transfer Type | Routing Number | Settlement |
|---|---|---|
| Direct Deposit / ACH | ABA routing number (this page) | 1–2 business days (same day for Same Day ACH) |
| Domestic Wire Transfer | Confirm with ILLINOIS SERVICE directly — may differ | Same business day (real-time via Fedwire) |
| International Wire | SWIFT/BIC code required — find it here | 1–5 business days |
About ILLINOIS SERVICE in CHICAGO, IL
ILLINOIS SERVICE serves customers in CHICAGO, IL through its local banking network. The routing number listed on this page are the ABA-registered identifier for ILLINOIS SERVICE's CHICAGO operations — used by the Federal Reserve's payment infrastructure to route ACH and wire transactions to the correct financial institution.
To browse ILLINOIS SERVICE routing numbers in other cities in IL, visit the ILLINOIS SERVICE IL directory. For all ILLINOIS SERVICE states, see the ILLINOIS SERVICE routing number directory. For international transfers, use the SWIFT Code Lookup. For Indian bank transfers, use the IFSC Code Lookup.
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 — ILLINOIS SERVICE Routing Numbers in CHICAGO
- Direct deposit — payroll, IRS tax refunds, Social Security, VA benefits
- ACH transfers — online bill payments, electronic debits, bank transfers
- Domestic wire transfers — same-day settlement via Fedwire (may use a separate wire routing number)
- Check payments — printed at the bottom-left of every ILLINOIS SERVICE personal check
- ACH debit authorisations — recurring payments to utilities, subscriptions, insurance